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In Assyrian religion, the palm is one of the trees identified as the Sacred Tree connecting heaven, represented by the crown of the tree, and earth, the base of the trunk. Reliefs from the 9th century BC show winged genii holding palm fronds in the presence of the Sacred Tree.[3] It is associated with the goddess Ishtar and is found on the Ishtar Gate. In ancient Mesopotamia, the date palm may have represented fertility in humans. The Mesopotamian goddess Inanna, who had a part in the sacred marriage ritual, was believed to make the dates abundant. Palm stems represented long life to the Ancient Egyptians, and the god Huh was often shown holding a palm stem in one or both hands. The palm was carried in Egyptian funeral processions to represent eternal life.The Kingdom of Nri (Igbo) used the omu, a tender palm frond, to sacralize and restrain. The palm was a symbol of Phoenicia and appeared on Punic coins. In ancient Greek, the word for palm, phoinix, was thought to be related to the ethnonym. In Archaic Greece, the palm tree was a sacred sign of Apollo, who had been born under a palm on the island of Delos. The palm thus became an icon of the Delian League. In recognition of the alliance, Cimon of Athens erected a bronze statue of a palm tree at Delphi as part of a victory monument commemorating the Battle of the Eurymedon (469/466 BC). In addition to representing the victorious League, the bronze palm (phoinix) was a visual pun on the defeated Phoenician fleet.[9] From 400 BC onward, a palm branch was awarded to the victor in athletic contests, and the practice was brought to Rome around 293 BC. Solidus (335-336 AD) of Constantine I, the first Christian emperor, with Victory holding a palm and a military trophy next to a christogram The palm became so closely associated with victory in ancient Roman culture that the Latin word palma could be used as a metonym for "victory", and was a sign of any kind of victory. A lawyer who won his case in the forum would decorate his front door with palm leaves. The palm branch or tree became a regular attribute of the goddess Victory, and when Julius Caesar secured his rise to sole power with a victory at Pharsalus, a palm tree was supposed to have sprung up miraculously at the Temple of Nike, the Greek counterpart of Victory, in Tralles, later known as Caesarea, in Asia Minor. The toga palmata was a toga ornamented with a palm motif; it was worn to celebrate a military triumph only by those who had a previous triumph. The toga itself was the garment of the civilian at peace, and was worn by the triumphator to mark his laying down of arms and the cessation of war. The use of the palm in this setting indicates how the original meaning of "victory" shaded into "peace" as the aftermath of victory. Coins issued under Constantine I, the first Christian emperor, and his successors continue to display the traditional iconography of Victory, but often combined with Christian symbolism such as christograms. The Roman senator Symmachus, who tried to preserve Rome's religious traditions under Christian domination, is pictured on an ivory diptych bearing a palm branch in an allegorical triumph over death.In Judaism, the date palm (Lulav) is one of the Four Species used in the daily prayers on the feast of Sukkot. It is bound together with the hadass (myrtle), and aravah (willow). The Midrash notes that the binding of the Four Species symbolizes the desire to unite the four "types" of Jews in service of God. During the Roman Empire, the date palm represented Judaea and its fecundity to both Romans and Jews. Roman sources praise the date as the produce of the province. The date palm was a frequent image for Judaea on Imperial coinage, most notably on the Iudaea Capta series, when the typical military trophy is replaced by the palm. The palm appears also on at least one Hasmonean coin and on coinage issued in 38–39 AD by Herod Antipas. Palm ornaments are found also on Jewish ossuaries. In 1965, Judean date palm seeds dated at around 2000 years old were recovered during excavations at Herod the Great's palace on Masada in Israel. In 2005, some of the seeds were planted. One grew and has been nicknamed "Methuselah".In contemporary Christianity, the palm branches carried on Palm Sunday originate in the triumphal entry of Christ into Jerusalem. Early Christians used the palm branch to symbolize the victory of the faithful over enemies of the soul, as in the Palm Sunday festival celebrating the triumphal entry of Jesus into Jerusalem. In western Christian art, martyrs were often shown holding a palm frond as an attribute, representing the victory of spirit over flesh, and it was widely believed that a picture of a palm on a tomb meant that a martyr was buried there. Origen calls the palm (In Joan, XXXI) the symbol of victory in that war waged by the spirit against the flesh. In this sense it was especially applicable to martyrs, the victors par excellence over the spiritual foes of mankind; hence the frequent occurrence in the Acts of the martyrs of such expressions as "he received the palm of martyrdom." On 10 April 1688 it was decided by the Congregation of Rites that the palm when found depicted on catacomb tombs was to be regarded as a proof that a martyr had been interred there. Subsequently this opinion was acknowledged by Mabillon, Muratori, Benedict XIV and others to be untenable; further investigation showed that the palm was represented not only on tombs of the post-persecution era, but even on tombs of those who did not practice Christianity. Palms carried on Palm Sunday, 2011, at Sanok, Poland The general significance of the palm on early Christian monuments is slightly modified according to its association with other symbols (e.g., with the monogram of Christ, the Ichthus (Fish), or the Good Shepherd). On some later monuments the palm was represented merely as an ornament separating two scenes. Palms also represented heaven, evidenced by ancient art often depicting Jesus in heaven among palms.The palm is richly significant in Islamic culture, and the palm symbolizes rest and hospitality in many cultures of the Middle East. The presence of palm trees around an oasis showed that water was the gift of Allah. In the Quran, the palm appears in the paradisical imagery of the Garden (Jannah). In one prophetic tradition, the Dome of the Rock will stand on a palm tree issuing from one of the rivers of Paradise. Muhammad is said to have built his home out of palm,[citation needed] to have leaned against a palm while speaking,and to have raised the first mosque as a roof placed on palm trees. The first muezzin climbed palm trees to call the faithful to prayer, from which the minaret developed.[citation needed] In the Quran , Mary is said to have given birth to Jesus under a date palm.'Tis true, sun symbols are predominantly masculine in their energetic tone. However, the palm shares its symbolic gender with succulent female qualities found in the fruit it bears. And so, we see this scenario with symbolic eyes: The erect, towering trunk representing the phallus - male power rising into action - followed by a flowering, expansive fireworks display of long supple leaves nestling an offspring of rich, nutritious fruits. Beautiful symbolism, isn't it? This is a snapshot of how our forbears viewed the palm, and why it is an icon for fertility and unification. In alchemical traditions, the palm tree is a symbol of androgyny as it possesses the perfect integration of both male and female attributes. This is an alchemical achievement - to be wholly, pristinely balanced - equally united with polarity. This androgynous concept plays out in the esoteric archetype of the High Priestess found in the Tarot. Indeed, the palm tree is depicted in this card and here demonstrates the intent of the Priestess to amalgamate the realms of seen and unseen - mixing them into a whole vision with a goal to dispense for the betterment of humanity. To Assyrians and Egyptians the palm is considered a tree of life. It was sacred to Ishtar and Ashtarte as well as to Nut and Hathor. These deities utilized the palm tree nectars to keep the dead in a semi-animated state while they awaited their fate in the Underworld. Sometimes the fruit of the palm would keep these souls in this state of undead forever. The date palm is also associated with the sun god Ra, as a resurrection figurehead. These aspects bring to mind themes of victory related to palm tree symbolism. Not only victory over the conflict between dualities, but victory over death as well. Indeed, Christians adapted the palms as a symbol of resurrection (victory over death through the union with Christ). Palm fronds were lain on the path walked by Christ as he entered Jerusalem. Palms were also strewn out as a red carpet welcoming returning Roman warriors from battle. They are also laid out to welcome returning pilgrims to the Holy Land. In these examples, the palm tree symbolism conjures elements of attainment, welcoming, and all the wonderful qualities we associate with the soul's return to its Source. As dream symbols, palm trees symbolize our ability to rise above conflict and spread our light brilliantly - letting it shine over the din of petty concerns - rising above disillusionment like the sun itself. Palms in dreams may also be a message for us to resurrect aspects of ourselves. In resurrecting these parts, we become a more whole entity. In northern Sudan, the doum palm is the symbol of endurance (doum), and particularly of the Muslim saint who gave his name to Wad Hamid.]The Garden of Eden Imagine living in a place where everything's perfect. There are fruit trees , cool breezes , and rivers . People walk around naked without shame , and God just hangs out, speaks directly to mortals, and enjoys evening strolls through the garden . Just imagine…YOU CAN'T GO THERE. Sorry to be so forceful, but that's kind of the point. After Adam and Eve ate the fruit of the tree of the knowledge of good and evil , mortals were forever banished from Eden. And you know what? Eden is used as a symbol in literature and art not only to represent paradise but also—and maybe more often—a symbol of paradise lost, of the all-elusive nature of happiness and peace, and of the end of innocence. Writing Eden Upon their exit from Eden mortals have to deal. Their lives are like ours. They die , endlessly toil , feel shame , are aware of their nudity , and endure the pain of childbirth . Soon Cain will introduce violence into the world when he slays his brother Abel, and with this comes an overdose of jealousy and sibling rivalry (4:1-15). And eventually Cain will settle "away from the presence of the Lord" .Poets just love this kind of stuff, and Eden ranks high in their toolbox of images. Everyone from Robert Frost to Emily Dickinson to Ina Rousseau has taken their turn to remind us that we can never go back. Speaking of depressing, how about John Steinbeck's East of Eden? Its title is taken from Genesis 4:16, and it's chock full of Genesis-esque themes, especially sibling rivalry. Genesis Owns Eden Eden is such a powerful symbol that the authors of Genesis capitalize on it right after they've presented the image. Remember Lot? When Abraham tells him to take first pick at the land he wants, Lot does some recon:
Lot looked about him, and saw that the plain of the Jordan was well watered everywhere like the garden of the Lord, like the land of Egypt, in the direction of Zoar […]. So Lot chose for himself all the plain of the Jordan, and Lot journeyed eastwards; thus they separated from each other. Abram settled in the land of Canaan, while Lot settled among the cities of the Plain and moved his tent as far as Sodom. Now the people of Sodom were wicked, great sinners against the Lord. "The plain of the Jordan" is "like the garden of the Lord," eh? In the Talmud and the Jewish Kabbalah, the scholars agree that there are two types of spiritual places called "Garden in Eden". The first is rather terrestrial, of abundant fertility and luxuriant vegetation, known as the "lower Gan Eden". The second is envisioned as being celestial, the habitation of righteous, Jewish and non-Jewish, immortal souls, known as the "higher Gan Eden". The Rabbanim differentiate between Gan and Eden. Adam is said to have dwelt only in the Gan, whereas Eden is said never to be witnessed by any mortal eye. According to Jewish eschatology, the higher Gan Eden is called the "Garden of Righteousness". It has been created since the beginning of the world, and will appear gloriously at the end of time. The righteous dwelling there will enjoy the sight of the heavenly chayot carrying the throne of God. Each of the righteous will walk with God, who will lead them in a dance. Its Jewish and non-Jewish inhabitants are "clothed with garments of light and eternal life, and eat of the tree of life" (Enoch 58,3) near to God and His anointed ones. This Jewish rabbinical concept of a higher Gan Eden is opposed by the Hebrew terms gehinnom and sheol, figurative names for the place of spiritual purification for the wicked dead in Judaism, a place envisioned as being at the greatest possible distance from heaven. In modern Jewish eschatology, it is believed that history will complete itself and the ultimate destination will be when all mankind returns to the Garden of Eden.
Islamic view Spanish-Arabic world map from 1109 AD with Eden in east (at top)
The Garden of Eden is spoken about prominently in the Quran and the tafsir (interpretation). This includes surat Sad, which features 21 verses on the subject, surat al-Baqarah, surat al-A'raf, and surat al-Hijr. The narrative mainly surrounds the expulsion of Iblis from the garden and his subsequent tempting of Adam and Eve. After Iblis refuses to follow God's command to bow down to Adam for being his greatest creation, Allah transforms him into Satan as a punishment. Unlike the Biblical account, the Quran mentions only one tree in Eden, the tree of immortality, which Allah specifically forbade to Adam and Eve. Satan, disguised as a serpent, repeatedly told Adam to eat from the tree, and eventually both Adam and Eve did so, thus disobeying Allah. These stories are also featured in the Islamic hadith collections, including al-Tabari. We've already been told that it's impossible to go back to Eden, so it's no surprise that Lot ends up in Sodom. And as we know, Sodom ain't no Eden. Return to Eden; The Christian Bible begins with the image Eden in Genesis, but get this—it also ends with a vision of a future Eden. The Apocalypse of John (a.k.a. Revelation) foresees a God-induced utopia that clearly echoes the paradise of Genesis 2-3.
For the author of the Apocalypse, Eden will return complete with a river and the tree of life bearing fruit and leaves that will heal the nations. And sure enough, mortals will again dwell with God, whose throne will be right there in the middle (Revelation 22:1-5). So in the vision of the Christian Bible, the story of mortals will end where it began, in Eden.The Garden of Eden (Hebrew גַּן עֵדֶן, Gan ʿEdhen) is the biblical "garden of God", described most notably in the Book of Genesis chapters 2 and 3, and also in the book of Ezekiel.[2] The "garden of God", not called Eden, is mentioned in Genesis 14, and the "trees of the garden" are mentioned in Ezekiel 31. The Book of Zechariah and the Book of Psalms also refer to trees and water in relation to the temple without explicitly mentioning Eden. Traditionally, the favoured derivation of the name "Eden" was from the Akkadian edinnu, derived from a Sumerian word meaning "plain" or "steppe". Eden is now believed to be more closely related to an Aramaic root word meaning "fruitful, well-watered." The Hebrew term is translated "pleasure" in Sarah's secret saying in Genesis 18:12. The story of Eden echoes the Mesopotamian myth of a king, as a primordial man, who is placed in a divine garden to guard the tree of life. In the Hebrew Bible, Adam and Eve are depicted as walking around the Garden of Eden naked due to their innocence. Eden and its rivers may signify the real Jerusalem, the Temple of Solomon, or the Promised Land. It may also represent the divine garden on Zion, and the mountain of God, which was also Jerusalem. The imagery of the Garden, with its serpent and cherubs, has been compared to the images of the Solomonic Temple with its copper serpent, the nehushtan, and guardian cherubs.
Alexander Nevsky Cathedral. The large and richly decorated Russian Orthodox church, designed in a mixed historicist style, was completed on Toompea Hill in 1900, when Estonia was part of the Czarist Empire. The well-maintained cathedral is one of the most monumental examples of Orthodox sacral architecture in Tallinn.
The monastery of the Benedictine Order at Pannonhalma was founded in 996 in Western Hungary and had a major role in the diffusion of Christianity in medieval Central Europe. The monastery shows a stratification of different architectural styles and various buildings.
Among these buildings: a school (the first ever school founded in the country), the monastic complex – home to the monks whose life is still based on St. Benedict’s Rule ‘Ora et labora’ -, the tourist welcome points and hospitality facilities, the Chapel of Our Lady, the Millennium Chapel and the botanical and herbal gardens.
www.comece.eu/christian-artworks-benedictine-archabbey-of...
Il carattere sacrale del sovrano, come investito da Dio per governare i popoli, viene espresso emblematicamente nella parte centrale del palazzo reale di Caserta, concepita come una chiesa (era addirittura prevista una cupola, mai realizzata) con un'abside dalla quale il re sarebbe apparso come una divinità benedicente.
Luigi Vanvitelli, che ha realizzato la facciata a partire dal 1752, ha interpretato alla lettera i principi del paternalismo illuminato, che fallirà nei suoi intenti e sfocerà nella rivoluzione francese.
The Cathedral of Seville is built on the old aljama mosque of the city, this shows the power that one culture exercises over another when it is conquered. This fact makes its plan different, facing Mecca and not Jerusalem, that is, facing south instead of east. It should be clarified that Mecca is oriented at 10o from Seville and not at 86o as the old mosque is oriented, this is due to the fact that in Al-Andalus the mosques had to be oriented towards the south quadrant and not towards the east, as the Christian churches did. When the Cathedral Chapter commissioned the design of the Gothic Cathedral, it stated verbatim that it wanted a Cathedral that everyone who saw it would take for crazy. For this, 5 naves were created that covered the 116 by 76 meter rectangle occupied by the Almohad mosque, this results, unlike what was usual in the great European Gothic Cathedrals, a hall plan with a Latin cross marked in height and in width by the central naves and the transept. This hall plan also results in the absence of an ambulatory at the head, which ends in a straight line like the wall of the old mosque. Later the Royal Chapel would be added, which is a Renaissance apse, but it does not really correspond to the Gothic company. In the naves of the Gospel and the Epistle, which are the lateral naves, there are many chapels. The 60 pillars support 68 ogive vaults, highlighting those of the transept and central nave with their star shapes. Instead of placing a clerestory, a continuous balcony was chosen along the main nave in order to be able to wander around the temple without being seen. Located in the central nave, in order from the feet, are the Retrochoir, the Choir, with two organs, the Transept, the Main Altar, the Back of Altar and the Royal Chapel.
Sacral Baroque church
The first large sacral Baroque church in Switzerland; constructed in 1666 by Father Christoph Vogler for the Jesuits.
A Roma, al centro di Piazza Navona, sorge la Fontana dei Fiumi di Gian Lorenzo Bernini [1652]; la quale raffigura allegoricamente il Danubio, il Nilo, il Gange ed il Rio de la Plata.
A fronte di questa sorge la chiesa di Santa Agnese, la quale costruzione [1652-57] fu vinta da Francesco Borromini, al tempo acerrimo rivale del Bernini.
Tradizione vuole che quest'ultimo, indignato per non aver vinto l'appalto della costruzione della chiesa oltre che della fontana, avesse per l'appunto dato alle raffigurazioni dei fiumi delle pose, che si può dire, particolari.
Il Rio della Plata, rivolto verso la facciata della chiesa, starebbe tenendo il braccio sollevato in segno di protezione dal possibile crollo di S. Agnese, oppure, starebbe oscurando i propri occhi dalla vista di questa; il Nilo invece starebbe nasconde la testa sotto ad un telo sempre per lo stesso motivo, così da non vedere "l'orrenda opera".
The fortified early Gothic church from the first half of the 14th century was built on the site of an older building. In the 15th century it was fortified with a wall and a wooden bell tower was built on the grounds in 1657. The single-nave space with a square-ended presbytery and a built-in sacristy has a painted cassette ceiling from 1758, the presbytery is characteristic by its rib vault. The mural paintings date back to the 60s of the 14th century and the creator of at least a part of them is the Master of Ochtiná presbytery. These interior frescoes were discovered in the early 20th century by I. Huszka who was restoring them in 1905. All the paintings, interior and exterior ones, were completely restored between 1983 and 1985 by J. Josefík, L. Székely and I. Žuch.
Within the almost intact medieval church, the murals have a uniquely strong impression and informative value, thanks to their scale and complexity of preservation. Thematically they focus on individual scenes from the Marian and the Passion cycle, but they do not have a uniform concept unlike the upper belt on the nave’s northern wall with a complete depiction of the St. Ladislaus legend.
Byzantine Monastery of Panayia Mavriotissa
A wonderful location at the Lake Kastoria in the north of Greece. There is no campsite in this area, so I asked the staff of the shop in the monastery, if I could spend 1 night at the parking place.
One of the eldest churches in Poland. Mieszko the First - the first king of Poland was baptised in 996 A.D. in the Cathedral.
Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads (cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have independently evolved elongate bodies without limbs or with greatly reduced limbs at least twenty-five times via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbaenia, Dibamidae, and Pygopodidae).
Living snakes are found on every continent except Antarctica, and on most smaller land masses; exceptions include some large islands, such as Ireland, Iceland, Greenland, the Hawaiian archipelago, and the islands of New Zealand, as well as many small islands of the Atlantic and central Pacific oceans. Additionally, sea snakes are widespread throughout the Indian and Pacific oceans. Around thirty families are currently recognized, comprising about 520 genera and about 3,900 species. They range in size from the tiny, 10.4 cm-long (4.1 in) Barbados threadsnake to the reticulated python of 6.95 meters (22.8 ft) in length. The fossil species Titanoboa cerrejonensis was 12.8 meters (42 ft) long. Snakes are thought to have evolved from either burrowing or aquatic lizards, perhaps during the Jurassic period, with the earliest known fossils dating to between 143 and 167 Ma ago. The diversity of modern snakes appeared during the Paleocene epoch (c. 66 to 56 Ma ago, after the Cretaceous–Paleogene extinction event). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus.
Most species of snake are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense. Some possess venom that is potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction.
Etymology
The English word snake comes from Old English snaca, itself from Proto-Germanic *snak-an- (cf. Germanic Schnake 'ring snake', Swedish snok 'grass snake'), from Proto-Indo-European root *(s)nēg-o- 'to crawl to creep', which also gave sneak as well as Sanskrit nāgá 'snake'. The word ousted adder, as adder went on to narrow in meaning, though in Old English næddre was the general word for snake. The other term, serpent, is from French, ultimately from Indo-European *serp- 'to creep', which also gave Ancient Greek ἕρπω (hérpō) 'I crawl' and Sanskrit sarpá ‘snake’.
The fossil record of snakes is relatively poor because snake skeletons are typically small and fragile making fossilization uncommon. Fossils readily identifiable as snakes (though often retaining hind limbs) first appear in the fossil record during the Cretaceous period. The earliest known true snake fossils (members of the crown group Serpentes) come from the marine simoliophiids, the oldest of which is the Late Cretaceous (Cenomanian age) Haasiophis terrasanctus from the West Bank, dated to between 112 and 94 million years old.
Based on comparative anatomy, there is consensus that snakes descended from lizards. Pythons and boas—primitive groups among modern snakes—have vestigial hind limbs: tiny, clawed digits known as anal spurs, which are used to grasp during mating The families Leptotyphlopidae and Typhlopidae also possess remnants of the pelvic girdle, appearing as horny projections when visible.
Front limbs are nonexistent in all known snakes. This is caused by the evolution of their Hox genes, controlling limb morphogenesis. The axial skeleton of the snakes' common ancestor, like most other tetrapods, had regional specializations consisting of cervical (neck), thoracic (chest), lumbar (lower back), sacral (pelvic), and caudal (tail) vertebrae. Early in snake evolution, the Hox gene expression in the axial skeleton responsible for the development of the thorax became dominant. As a result, the vertebrae anterior to the hindlimb buds (when present) all have the same thoracic-like identity (except from the atlas, axis, and 1–3 neck vertebrae). In other words, most of a snake's skeleton is an extremely extended thorax. Ribs are found exclusively on the thoracic vertebrae. Neck, lumbar and pelvic vertebrae are very reduced in number (only 2–10 lumbar and pelvic vertebrae are present), while only a short tail remains of the caudal vertebrae. However, the tail is still long enough to be of important use in many species, and is modified in some aquatic and tree-dwelling species.
Many modern snake groups originated during the Paleocene, alongside the adaptive radiation of mammals following the extinction of (non-avian) dinosaurs. The expansion of grasslands in North America also led to an explosive radiation among snakes. Previously, snakes were a minor component of the North American fauna, but during the Miocene, the number of species and their prevalence increased dramatically with the first appearances of vipers and elapids in North America and the significant diversification of Colubridae (including the origin of many modern genera such as Nerodia, Lampropeltis, Pituophis, and Pantherophis).
Fossils
There is fossil evidence to suggest that snakes may have evolved from burrowing lizards, during the Cretaceous Period. An early fossil snake relative, Najash rionegrina, was a two-legged burrowing animal with a sacrum, and was fully terrestrial. One extant analog of these putative ancestors is the earless monitor Lanthanotus of Borneo (though it also is semiaquatic). Subterranean species evolved bodies streamlined for burrowing, and eventually lost their limbs. According to this hypothesis, features such as the transparent, fused eyelids (brille) and loss of external ears evolved to cope with fossorial difficulties, such as scratched corneas and dirt in the ears. Some primitive snakes are known to have possessed hindlimbs, but their pelvic bones lacked a direct connection to the vertebrae. These include fossil species like Haasiophis, Pachyrhachis and Eupodophis, which are slightly older than Najash.
This hypothesis was strengthened in 2015 by the discovery of a 113-million-year-old fossil of a four-legged snake in Brazil that has been named Tetrapodophis amplectus. It has many snake-like features, is adapted for burrowing and its stomach indicates that it was preying on other animals. It is currently uncertain if Tetrapodophis is a snake or another species, in the squamate order, as a snake-like body has independently evolved at least 26 times. Tetrapodophis does not have distinctive snake features in its spine and skull. A study in 2021 places the animal in a group of extinct marine lizards from the Cretaceous period known as dolichosaurs and not directly related to snakes.
An alternative hypothesis, based on morphology, suggests the ancestors of snakes were related to mosasaurs—extinct aquatic reptiles from the Cretaceous—forming the clade Pythonomorpha. According to this hypothesis, the fused, transparent eyelids of snakes are thought to have evolved to combat marine conditions (corneal water loss through osmosis), and the external ears were lost through disuse in an aquatic environment. This ultimately led to an animal similar to today's sea snakes. In the Late Cretaceous, snakes recolonized land, and continued to diversify into today's snakes. Fossilized snake remains are known from early Late Cretaceous marine sediments, which is consistent with this hypothesis; particularly so, as they are older than the terrestrial Najash rionegrina. Similar skull structure, reduced or absent limbs, and other anatomical features found in both mosasaurs and snakes lead to a positive cladistical correlation, although some of these features are shared with varanids.
Genetic studies in recent years have indicated snakes are not as closely related to monitor lizards as was once believed—and therefore not to mosasaurs, the proposed ancestor in the aquatic scenario of their evolution. However, more evidence links mosasaurs to snakes than to varanids. Fragmented remains found from the Jurassic and Early Cretaceous indicate deeper fossil records for these groups, which may potentially refute either hypothesis.
Genetic basis of snake evolution
Main article: Limb development
Both fossils and phylogenetic studies demonstrate that snakes evolved from lizards, hence the question became which genetic changes led to limb loss in the snake ancestor. Limb loss is actually very common in extant reptiles and has happened dozens of times within skinks, anguids, and other lizards.
In 2016, two studies reported that limb loss in snakes is associated with DNA mutations in the Zone of Polarizing Activity Regulatory Sequence (ZRS), a regulatory region of the sonic hedgehog gene which is critically required for limb development. More advanced snakes have no remnants of limbs, but basal snakes such as pythons and boas do have traces of highly reduced, vestigial hind limbs. Python embryos even have fully developed hind limb buds, but their later development is stopped by the DNA mutations in the ZRS.
Distribution
There are about 3,900 species of snakes, ranging as far northward as the Arctic Circle in Scandinavia and southward through Australia. Snakes can be found on every continent except Antarctica, as well as in the sea, and as high as 16,000 feet (4,900 m) in the Himalayan Mountains of Asia. There are numerous islands from which snakes are absent, such as Ireland, Iceland, and New Zealand (although New Zealand's northern waters are infrequently visited by the yellow-bellied sea snake and the banded sea krait).
Taxonomy
All modern snakes are grouped within the suborder Serpentes in Linnean taxonomy, part of the order Squamata, though their precise placement within squamates remains controversial.
The two infraorders of Serpentes are Alethinophidia and Scolecophidia. This separation is based on morphological characteristics and mitochondrial DNA sequence similarity. Alethinophidia is sometimes split into Henophidia and Caenophidia, with the latter consisting of "colubroid" snakes (colubrids, vipers, elapids, hydrophiids, and atractaspids) and acrochordids, while the other alethinophidian families comprise Henophidia. While not extant today, the Madtsoiidae, a family of giant, primitive, python-like snakes, was around until 50,000 years ago in Australia, represented by genera such as Wonambi.
There are numerous debates in the systematics within the group. For instance, many sources classify Boidae and Pythonidae as one family, while some keep the Elapidae and Hydrophiidae (sea snakes) separate for practical reasons despite their extremely close relation.
Recent molecular studies support the monophyly of the clades of modern snakes, scolecophidians, typhlopids + anomalepidids, alethinophidians, core alethinophidians, uropeltids (Cylindrophis, Anomochilus, uropeltines), macrostomatans, booids, boids, pythonids and caenophidians.
Legless lizards
Main article: Legless lizard
While snakes are limbless reptiles, evolved from (and grouped with) lizards, there are many other species of lizards that have lost their limbs independently but which superficially look similar to snakes. These include the slowworm and glass snake.
Other serpentine tetrapods that are unrelated to snakes include caecilians (amphibians), amphisbaenians (near-lizard squamates), and the extinct aistopods (amphibians).
Biology
The now extinct Titanoboa cerrejonensis was 12.8 m (42 ft) in length. By comparison, the largest extant snakes are the reticulated python, measuring about 6.95 m (22.8 ft) long, and the green anaconda, which measures about 5.21 m (17.1 ft) long and is considered the heaviest snake on Earth at 97.5 kg (215 lb).
At the other end of the scale, the smallest extant snake is Leptotyphlops carlae, with a length of about 10.4 cm (4.1 in). Most snakes are fairly small animals, approximately 1 m (3.3 ft) in length.
Perception
Pit vipers, pythons, and some boas have infrared-sensitive receptors in deep grooves on the snout, allowing them to "see" the radiated heat of warm-blooded prey. In pit vipers, the grooves are located between the nostril and the eye in a large "pit" on each side of the head. Other infrared-sensitive snakes have multiple, smaller labial pits lining the upper lip, just below the nostrils.
A snake tracks its prey using smell, collecting airborne particles with its forked tongue, then passing them to the vomeronasal organ or Jacobson's organ in the mouth for examination. The fork in the tongue provides a sort of directional sense of smell and taste simultaneously. The snake's tongue is constantly in motion, sampling particles from the air, ground, and water, analyzing the chemicals found, and determining the presence of prey or predators in the local environment. In water-dwelling snakes, such as the anaconda, the tongue functions efficiently underwater.
The underside of a snake is very sensitive to vibration, allowing the snake to detect approaching animals by sensing faint vibrations in the ground. Despite the lack of outer ears, they are also able to detect airborne sounds.
Snake vision varies greatly between species. Some have keen eyesight and others are only able to distinguish light from dark, but the important trend is that a snake's visual perception is adequate enough to track movements. Generally, vision is best in tree-dwelling snakes and weakest in burrowing snakes. Some have binocular vision, where both eyes are capable of focusing on the same point, an example of this being the Asian vine snake. Most snakes focus by moving the lens back and forth in relation to the retina. Diurnal snakes have round pupils and many nocturnal snakes have slit pupils. Most species possess three visual pigments and are probably able to see two primary colors in daylight. The annulated sea snake and the genus Helicops appears to have regained much of their color vision as an adaption to the marine environment they live in. It has been concluded that the last common ancestors of all snakes had UV-sensitive vision, but most snakes that depend on their eyesight to hunt in daylight have evolved lenses that act like sunglasses for filtering out the UV-light, which probably also sharpens their vision by improving the contrast.
Skin
The skin of a snake is covered in scales. Contrary to the popular notion of snakes being slimy (because of possible confusion of snakes with worms), snakeskin has a smooth, dry texture. Most snakes use specialized belly scales to travel, allowing them to grip surfaces. The body scales may be smooth, keeled, or granular. The eyelids of a snake are transparent "spectacle" scales, also known as brille, which remain permanently closed.
The shedding of scales is called ecdysis (or in normal usage, molting or sloughing). Snakes shed the complete outer layer of skin in one piece. Snake scales are not discrete, but extensions of the epidermis—hence they are not shed separately but as a complete outer layer during each molt, akin to a sock being turned inside out.
Snakes have a wide diversity of skin coloration patterns which are often related to behavior, such as the tendency to have to flee from predators. Snakes that are at a high risk of predation tend to be plain, or have longitudinal stripes, providing few reference points to predators, thus allowing the snake to escape without being noticed. Plain snakes usually adopt active hunting strategies, as their pattern allows them to send little information to prey about motion. Blotched snakes usually use ambush-based strategies, likely because it helps them blend into an environment with irregularly shaped objects, like sticks or rocks. Spotted patterning can similarly help snakes to blend into their environment.
The shape and number of scales on the head, back, and belly are often characteristic and used for taxonomic purposes. Scales are named mainly according to their positions on the body. In "advanced" (Caenophidian) snakes, the broad belly scales and rows of dorsal scales correspond to the vertebrae, allowing these to be counted without the need for dissection.
Molting
Molting (or "ecdysis") serves a number of purposes. It allows old, worn skin to be replaced and it can remove parasites such as mites and ticks that live in the skin. It has also been observed in snakes that molting can be synced to mating cycles. Shedding skin can release pheromones and revitalize color and patterns of the skin to increase attraction of mates. Renewal of the skin by molting supposedly allows growth in some animals such as insects, but this has been disputed in the case of snakes.
Molting occurs periodically throughout the life of a snake. Before each molt, the snake stops eating and often hides or moves to a safe place. Just before shedding, the skin becomes dull and dry looking and the snake's eyes turn cloudy or blue-colored. The inner surface of the old skin liquefies, causing it to separate from the new skin beneath it. After a few days, the eyes become clear and the snake "crawls" out of its old skin, which splits close to the snake's mouth. The snake rubs its body against rough surfaces to aid in the shedding of its old skin. In many cases, the cast skin peels backward over the body from head to tail in one piece, like pulling a sock off inside-out, revealing a new, larger, brighter layer of skin which has formed underneath.
A young snake that is still growing may shed its skin up to four times a year, but an older snake may shed only once or twice a year. The discarded skin carries a perfect imprint of the scale pattern, so it is usually possible to identify the snake from the cast skin if it is reasonably intact. This periodic renewal has led to the snake being a symbol of healing and medicine, as pictured in the Rod of Asclepius.
Scale counts can sometimes be used to identify the sex of a snake when the species is not distinctly sexually dimorphic. A probe is fully inserted into the cloaca, marked at the point where it stops, then removed and measured against the subcaudal scales. The scalation count determines whether the snake is a male or female, as the hemipenes of a male will probe to a different depth (usually longer) than the cloaca of a female.
Skeleton
The skeletons of snakes are radically different from those of most other reptiles (as compared with the turtle here, for example), consisting almost entirely of an extended ribcage.
The skeleton of most snakes consists solely of the skull, hyoid, vertebral column, and ribs, though henophidian snakes retain vestiges of the pelvis and rear limbs.
The skull consists of a solid and complete neurocranium, to which many of the other bones are only loosely attached, particularly the highly mobile jaw bones, which facilitate manipulation and ingestion of large prey items. The left and right sides of the lower jaw are joined only by a flexible ligament at the anterior tips, allowing them to separate widely, and the posterior end of the lower jaw bones articulate with a quadrate bone, allowing further mobility. The mandible and quadrate bones can pick up ground-borne vibrations; because the sides of the lower jaw can move independently of one another, a snake resting its jaw on a surface has sensitive stereo auditory perception, used for detecting the position of prey. The jaw–quadrate–stapes pathway is capable of detecting vibrations on the angstrom scale, despite the absence of an outer ear and the lack of an impedance matching mechanism—provided by the ossicles in other vertebrates—for receiving vibrations from the air.
The hyoid is a small bone located posterior and ventral to the skull, in the 'neck' region, which serves as an attachment for the muscles of the snake's tongue, as it does in all other tetrapods.
The vertebral column consists of between 200 and 400 vertebrae, or sometimes more. The body vertebrae each have two ribs articulating with them. The tail vertebrae are comparatively few in number (often less than 20% of the total) and lack ribs. The vertebrae have projections that allow for strong muscle attachment, enabling locomotion without limbs.
Caudal autotomy (self-amputation of the tail), a feature found in some lizards, is absent in most snakes. In the rare cases where it does exist in snakes, caudal autotomy is intervertebral (meaning the separation of adjacent vertebrae), unlike that in lizards, which is intravertebral, i.e. the break happens along a predefined fracture plane present on a vertebra.
In some snakes, most notably boas and pythons, there are vestiges of the hindlimbs in the form of a pair of pelvic spurs. These small, claw-like protrusions on each side of the cloaca are the external portion of the vestigial hindlimb skeleton, which includes the remains of an ilium and femur.
Snakes are polyphyodonts with teeth that are continuously replaced
Snakes and other non-archosaur (crocodilians, dinosaurs + birds and allies) reptiles have a three-chambered heart that controls the circulatory system via the left and right atrium, and one ventricle. Internally, the ventricle is divided into three interconnected cavities: the cavum arteriosum, the cavum pulmonale, and the cavum venosum. The cavum venosum receives deoxygenated blood from the right atrium and the cavum arteriosum receives oxygenated blood from the left atrium. Located beneath the cavum venosum is the cavum pulmonale, which pumps blood to the pulmonary trunk.
The snake's heart is encased in a sac, called the pericardium, located at the bifurcation of the bronchi. The heart is able to move around, owing to the lack of a diaphragm; this adjustment protects the heart from potential damage when large ingested prey is passed through the esophagus. The spleen is attached to the gall bladder and pancreas and filters the blood. The thymus, located in fatty tissue above the heart, is responsible for the generation of immune cells in the blood. The cardiovascular system of snakes is unique for the presence of a renal portal system in which the blood from the snake's tail passes through the kidneys before returning to the heart.
The vestigial left lung is often small or sometimes even absent, as snakes' tubular bodies require all of their organs to be long and thin.[71] In the majority of species, only one lung is functional. This lung contains a vascularized anterior portion and a posterior portion that does not function in gas exchange. This 'saccular lung' is used for hydrostatic purposes to adjust buoyancy in some aquatic snakes and its function remains unknown in terrestrial species. Many organs that are paired, such as kidneys or reproductive organs, are staggered within the body, one located ahead of the other.
Snakes have no lymph nodes.
Venom
Cobras, vipers, and closely related species use venom to immobilize, injure, or kill their prey. The venom is modified saliva, delivered through fangs. The fangs of 'advanced' venomous snakes like viperids and elapids are hollow, allowing venom to be injected more effectively, and the fangs of rear-fanged snakes such as the boomslang simply have a groove on the posterior edge to channel venom into the wound. Snake venoms are often prey-specific, and their role in self-defense is secondary.
Venom, like all salivary secretions, is a predigestant that initiates the breakdown of food into soluble compounds, facilitating proper digestion. Even nonvenomous snakebites (like any animal bite) cause tissue damage.
Certain birds, mammals, and other snakes (such as kingsnakes) that prey on venomous snakes have developed resistance and even immunity to certain venoms.Venomous snakes include three families of snakes, and do not constitute a formal taxonomic classification group.
The colloquial term "poisonous snake" is generally an incorrect label for snakes. A poison is inhaled or ingested, whereas venom produced by snakes is injected into its victim via fangs. There are, however, two exceptions: Rhabdophis sequesters toxins from the toads it eats, then secretes them from nuchal glands to ward off predators; and a small unusual population of garter snakes in the US state of Oregon retains enough toxins in their livers from ingested newts to be effectively poisonous to small local predators (such as crows and foxes).
Snake venoms are complex mixtures of proteins, and are stored in venom glands at the back of the head. In all venomous snakes, these glands open through ducts into grooved or hollow teeth in the upper jaw. The proteins can potentially be a mix of neurotoxins (which attack the nervous system), hemotoxins (which attack the circulatory system), cytotoxins (which attack the cells directly), bungarotoxins (related to neurotoxins, but also directly affect muscle tissue), and many other toxins that affect the body in different ways. Almost all snake venom contains hyaluronidase, an enzyme that ensures rapid diffusion of the venom.
Venomous snakes that use hemotoxins usually have fangs in the front of their mouths, making it easier for them to inject the venom into their victims. Some snakes that use neurotoxins (such as the mangrove snake) have fangs in the back of their mouths, with the fangs curled backwards. This makes it difficult both for the snake to use its venom and for scientists to milk them. Elapids, however, such as cobras and kraits are proteroglyphous—they possess hollow fangs that cannot be erected toward the front of their mouths, and cannot "stab" like a viper. They must actually bite the victim.
It has been suggested that all snakes may be venomous to a certain degree, with harmless snakes having weak venom and no fangs. According to this theory, most snakes that are labelled "nonvenomous" would be considered harmless because they either lack a venom delivery method or are incapable of delivering enough to endanger a human. The theory postulates that snakes may have evolved from a common lizard ancestor that was venomous, and also that venomous lizards like the gila monster, beaded lizard, monitor lizards, and the now-extinct mosasaurs, may have derived from this same common ancestor. They share this "venom clade" with various other saurian species.
Venomous snakes are classified in two taxonomic families:
Elapids – cobras including king cobras, kraits, mambas, Australian copperheads, sea snakes, and coral snakes.
Viperids – vipers, rattlesnakes, copperheads/cottonmouths, and bushmasters.
There is a third family containing the opistoglyphous (rear-fanged) snakes (as well as the majority of other snake species):
Colubrids – boomslangs, tree snakes, vine snakes, cat snakes, although not all colubrids are venomous.
Reproduction
Although a wide range of reproductive modes are used by snakes, all employ internal fertilization. This is accomplished by means of paired, forked hemipenes, which are stored, inverted, in the male's tail. The hemipenes are often grooved, hooked, or spined—designed to grip the walls of the female's cloaca. The clitoris of the female snake consists of two structures located between the cloaca and the scent glands.
Most species of snakes lay eggs which they abandon shortly after laying. However, a few species (such as the king cobra) construct nests and stay in the vicinity of the hatchlings after incubation. Most pythons coil around their egg-clutches and remain with them until they hatch. A female python will not leave the eggs, except to occasionally bask in the sun or drink water. She will even "shiver" to generate heat to incubate the eggs.
Some species of snake are ovoviviparous and retain the eggs within their bodies until they are almost ready to hatch. Several species of snake, such as the boa constrictor and green anaconda, are fully viviparous, nourishing their young through a placenta as well as a yolk sac; this is highly unusual among reptiles, and normally found in requiem sharks or placental mammals. Retention of eggs and live birth are most often associated with colder environments.
Sexual selection in snakes is demonstrated by the 3,000 species that each use different tactics in acquiring mates. Ritual combat between males for the females they want to mate with includes topping, a behavior exhibited by most viperids in which one male will twist around the vertically elevated fore body of its opponent and force it downward. It is common for neck-biting to occur while the snakes are entwined.
Facultative parthenogenesis
Parthenogenesis is a natural form of reproduction in which growth and development of embryos occur without fertilization. Agkistrodon contortrix (copperhead) and Agkistrodon piscivorus (cottonmouth) can reproduce by facultative parthenogenesis, meaning that they are capable of switching from a sexual mode of reproduction to an asexual mode. The most likely type of parthenogenesis to occur is automixis with terminal fusion, a process in which two terminal products from the same meiosis fuse to form a diploid zygote. This process leads to genome-wide homozygosity, expression of deleterious recessive alleles, and often to developmental abnormalities. Both captive-born and wild-born copperheads and cottonmouths appear to be capable of this form of parthenogenesis.
Reproduction in squamate reptiles is almost exclusively sexual. Males ordinarily have a ZZ pair of sex-determining chromosomes, and females a ZW pair. However, the Colombian Rainbow boa (Epicrates maurus) can also reproduce by facultative parthenogenesis, resulting in production of WW female progeny. The WW females are likely produced by terminal automixis.
Embryonic Development
Snake embryonic development initially follows similar steps as any vertebrate embryo. The snake embryo begins as a zygote, undergoes rapid cell division, forms a germinal disc, also called a blastodisc, then undergoes gastrulation, neurulation, and organogenesis. Cell division and proliferation continues until an early snake embryo develops and the typical body shape of a snake can be observed. Multiple features differentiate the embryologic development of snakes from other vertebrates, two significant factors being the elongation of the body and the lack of limb development.
The elongation in snake body is accompanied by a significant increase in vertebra count (mice have 60 vertebrae, whereas snakes may have over 300). This increase in vertebrae is due to an increase in somites during embryogenesis, leading to an increased number of vertebrae which develop. Somites are formed at the presomitic mesoderm due to a set of oscillatory genes that direct the somitogenesis clock. The snake somitogenesis clock operates at a frequency 4 times that of a mouse (after correction for developmental time), creating more somites, and therefore creating more vertebrae. This difference in clock speed is believed to be caused by differences in Lunatic fringe gene expression, a gene involved in the somitogenesis clock.
There is ample literature focusing on the limb development/lack of development in snake embryos and the gene expression associated with the different stages. In basal snakes, such as the python, embryos in early development exhibit a hind limb bud that develops with some cartilage and a cartilaginous pelvic element, however this degenerates before hatching. This presence of vestigial development suggests that some snakes are still undergoing hind limb reduction before they are eliminated. There is no evidence in basal snakes of forelimb rudiments and no examples of snake forelimb bud initiation in embryo, so little is known regarding the loss of this trait. Recent studies suggests that hind limb reduction could be due to mutations in enhancers for the SSH gene, however other studies suggested that mutations within the Hox Genes or their enhancers could contribute to snake limblessness. Since multiple studies have found evidence suggesting different genes played a role in the loss of limbs in snakes, it is likely that multiple gene mutations had an additive effect leading to limb loss in snakes.
Behavior
Snake coiled on a stick in Oklahoma. It was brumating in a large pile of wood chips, found by this landscaper after he bulldozed the pile in late autumn 2018.
In regions where winters are too cold for snakes to tolerate while remaining active, local species will enter a period of brumation. Unlike hibernation, in which the dormant mammals are actually asleep, brumating reptiles are awake but inactive. Individual snakes may brumate in burrows, under rock piles, or inside fallen trees, or large numbers of snakes may clump together in hibernacula.
Feeding and diet
All snakes are strictly carnivorous, preying on small animals including lizards, frogs, other snakes, small mammals, birds, eggs, fish, snails, worms, and insects. Snakes cannot bite or tear their food to pieces so must swallow their prey whole. The eating habits of a snake are largely influenced by body size; smaller snakes eat smaller prey. Juvenile pythons might start out feeding on lizards or mice and graduate to small deer or antelope as an adult, for example.
The snake's jaw is a complex structure. Contrary to the popular belief that snakes can dislocate their jaws, they have an extremely flexible lower jaw, the two halves of which are not rigidly attached, and numerous other joints in the skull, which allow the snake to open its mouth wide enough to swallow prey whole, even if it is larger in diameter than the snake itself. For example, the African egg-eating snake has flexible jaws adapted for eating eggs much larger than the diameter of its head. This snake has no teeth, but does have bony protrusions on the inside edge of its spine, which it uses to break the shell when eating eggs.
The majority of snakes eat a variety of prey animals, but there is some specialization in certain species. King cobras and the Australian bandy-bandy consume other snakes. Species of the family Pareidae have more teeth on the right side of their mouths than on the left, as they mostly prey on snails and the shells usually spiral clockwise.
Some snakes have a venomous bite, which they use to kill their prey before eating it. Other snakes kill their prey by constriction, while some swallow their prey when it is still alive.
After eating, snakes become dormant to allow the process of digestion to take place; this is an intense activity, especially after consumption of large prey. In species that feed only sporadically, the entire intestine enters a reduced state between meals to conserve energy. The digestive system is then 'up-regulated' to full capacity within 48 hours of prey consumption. Being ectothermic ("cold-blooded"), the surrounding temperature plays an important role in the digestion process. The ideal temperature for snakes to digest food is 30 °C (86 °F). There is a huge amount of metabolic energy involved in a snake's digestion, for example the surface body temperature of the South American rattlesnake (Crotalus durissus) increases by as much as 1.2 °C (2.2 °F) during the digestive process. If a snake is disturbed after having eaten recently, it will often regurgitate its prey to be able to escape the perceived threat. When undisturbed, the digestive process is highly efficient; the snake's digestive enzymes dissolve and absorb everything but the prey's hair (or feathers) and claws, which are excreted along with waste.
Hooding and spitting
Hooding (expansion of the neck area) is a visual deterrent, mostly seen in cobras (elapids), and is primarily controlled by rib muscles.[98] Hooding can be accompanied by spitting venom towards the threatening object,[99] and producing a specialized sound; hissing. Studies on captive cobras showed that 13 to 22% of the body length is raised during hooding.
Locomotion
The lack of limbs does not impede the movement of snakes. They have developed several different modes of locomotion to deal with particular environments. Unlike the gaits of limbed animals, which form a continuum, each mode of snake locomotion is discrete and distinct from the others; transitions between modes are abrupt.
Lateral undulation
Lateral undulation is the sole mode of aquatic locomotion, and the most common mode of terrestrial locomotion In this mode, the body of the snake alternately flexes to the left and right, resulting in a series of rearward-moving "waves". While this movement appears rapid, snakes have rarely been documented moving faster than two body-lengths per second, often much less. This mode of movement has the same net cost of transport (calories burned per meter moved) as running in lizards of the same mass.
Terrestrial lateral undulation is the most common mode of terrestrial locomotion for most snake species. In this mode, the posteriorly moving waves push against contact points in the environment, such as rocks, twigs, irregularities in the soil, etc. Each of these environmental objects, in turn, generates a reaction force directed forward and towards the midline of the snake, resulting in forward thrust while the lateral components cancel out. The speed of this movement depends upon the density of push-points in the environment, with a medium density of about 8[clarification needed] along the snake's length being ideal. The wave speed is precisely the same as the snake speed, and as a result, every point on the snake's body follows the path of the point ahead of it, allowing snakes to move through very dense vegetation and small openings.
When swimming, the waves become larger as they move down the snake's body, and the wave travels backwards faster than the snake moves forwards. Thrust is generated by pushing their body against the water, resulting in the observed slip. In spite of overall similarities, studies show that the pattern of muscle activation is different in aquatic versus terrestrial lateral undulation, which justifies calling them separate modes. All snakes can laterally undulate forward (with backward-moving waves), but only sea snakes have been observed reversing the motion (moving backwards with forward-moving waves).
Sidewinding
Most often employed by colubroid snakes (colubrids, elapids, and vipers) when the snake must move in an environment that lacks irregularities to push against (rendering lateral undulation impossible), such as a slick mud flat, or a sand dune, sidewinding is a modified form of lateral undulation in which all of the body segments oriented in one direction remain in contact with the ground, while the other segments are lifted up, resulting in a peculiar "rolling" motion. This mode of locomotion overcomes the slippery nature of sand or mud by pushing off with only static portions on the body, thereby minimizing slipping. The static nature of the contact points can be shown from the tracks of a sidewinding snake, which show each belly scale imprint, without any smearing. This mode of locomotion has very low caloric cost, less than 1⁄3 of the cost for a lizard to move the same distance. Contrary to popular belief, there is no evidence that sidewinding is associated with the sand being hot.
Concertina
When push-points are absent, but there is not enough space to use sidewinding because of lateral constraints, such as in tunnels, snakes rely on concertina locomotion. In this mode, the snake braces the posterior portion of its body against the tunnel wall while the front of the snake extends and straightens. The front portion then flexes and forms an anchor point, and the posterior is straightened and pulled forwards. This mode of locomotion is slow and very demanding, up to seven times the cost of laterally undulating over the same distance. This high cost is due to the repeated stops and starts of portions of the body as well as the necessity of using active muscular effort to brace against the tunnel walls.
Arboreal
The movement of snakes in arboreal habitats has only recently been studied. While on tree branches, snakes use several modes of locomotion depending on species and bark texture. In general, snakes will use a modified form of concertina locomotion on smooth branches, but will laterally undulate if contact points are available. Snakes move faster on small branches and when contact points are present, in contrast to limbed animals, which do better on large branches with little 'clutter'.
Gliding snakes (Chrysopelea) of Southeast Asia launch themselves from branch tips, spreading their ribs and laterally undulating as they glide between trees. These snakes can perform a controlled glide for hundreds of feet depending upon launch altitude and can even turn in midair.
Rectilinear
The slowest mode of snake locomotion is rectilinear locomotion, which is also the only one where the snake does not need to bend its body laterally, though it may do so when turning. In this mode, the belly scales are lifted and pulled forward before being placed down and the body pulled over them. Waves of movement and stasis pass posteriorly, resulting in a series of ripples in the skin. The ribs of the snake do not move in this mode of locomotion and this method is most often used by large pythons, boas, and vipers when stalking prey across open ground as the snake's movements are subtle and harder to detect by their prey in this manner.
Interactions with humans
Snakes do not ordinarily prey on humans. Unless startled or injured, most snakes prefer to avoid contact and will not attack humans. With the exception of large constrictors, nonvenomous snakes are not a threat to humans. The bite of a nonvenomous snake is usually harmless; their teeth are not adapted for tearing or inflicting a deep puncture wound, but rather grabbing and holding. Although the possibility of infection and tissue damage is present in the bite of a nonvenomous snake, venomous snakes present far greater hazard to humans. The World Health Organization (WHO) lists snakebite under the "other neglected conditions" category.
Documented deaths resulting from snake bites are uncommon. Nonfatal bites from venomous snakes may result in the need for amputation of a limb or part thereof. Of the roughly 725 species of venomous snakes worldwide, only 250 are able to kill a human with one bite. Australia averages only one fatal snake bite per year. In India, 250,000 snakebites are recorded in a single year, with as many as 50,000 recorded initial deaths. The WHO estimates that on the order of 100,000 people die each year as a result of snake bites, and around three times as many amputations and other permanent disabilities are caused by snakebites annually.
The treatment for a snakebite is as variable as the bite itself. The most common and effective method is through antivenom (or antivenin), a serum made from the venom of the snake. Some antivenom is species-specific (monovalent) while some is made for use with multiple species in mind (polyvalent). In the United States for example, all species of venomous snakes are pit vipers, with the exception of the coral snake. To produce antivenom, a mixture of the venoms of the different species of rattlesnakes, copperheads, and cottonmouths is injected into the body of a horse in ever-increasing dosages until the horse is immunized. Blood is then extracted from the immunized horse. The serum is separated and further purified and freeze-dried. It is reconstituted with sterile water and becomes antivenom. For this reason, people who are allergic to horses are more likely to have an allergic reaction to antivenom. Antivenom for the more dangerous species (such as mambas, taipans, and cobras) is made in a similar manner in South Africa, Australia , and India, although these antivenoms are species-specific.
Snake charmers
In some parts of the world, especially in India, snake charming is a roadside show performed by a charmer. In such a show, the snake charmer carries a basket containing a snake that he seemingly charms by playing tunes with his flutelike musical instrument, to which the snake responds. The snake is in fact responding to the movement of the flute, not the sound it makes, as snakes lack external ears (though they do have internal ears).
The Wildlife Protection Act of 1972 in India technically prohibits snake charming on the grounds of reducing animal cruelty. Other types of snake charmers use a snake and mongoose show, where the two animals have a mock fight; however, this is not very common, as the animals may be seriously injured or killed. Snake charming as a profession is dying out in India because of competition from modern forms of entertainment and environment laws proscribing the practice. Many Indians have never seen snake charming and it is becoming a folktale of the past.
Trapping
The Irulas tribe of Andhra Pradesh and Tamil Nadu in India have been hunter-gatherers in the hot, dry plains forests, and have practiced the art of snake catching for generations. They have a vast knowledge of snakes in the field. They generally catch the snakes with the help of a simple stick. Earlier, the Irulas caught thousands of snakes for the snake-skin industry. After the complete ban of the snake-skin industry in India and protection of all snakes under the Indian Wildlife (Protection) Act 1972, they formed the Irula Snake Catcher's Cooperative and switched to catching snakes for removal of venom, releasing them in the wild after four extractions. The venom so collected is used for producing life-saving antivenom, biomedical research and for other medicinal products. The Irulas are also known to eat some of the snakes they catch and are very useful in rat extermination in the villages.
Despite the existence of snake charmers, there have also been professional snake catchers or wranglers. Modern-day snake trapping involves a herpetologist using a long stick with a V-shaped end. Some television show hosts, like Bill Haast, Austin Stevens, Steve Irwin, and Jeff Corwin, prefer to catch them using bare hands.
Consumption
Although snakes are not commonly thought of as food, their consumption is acceptable in some cultures and may even be considered a delicacy. Snake soup is popular in Cantonese cuisine, consumed by locals in the autumn to warm their bodies. Western cultures document the consumption of snakes only under extreme circumstances of hunger, with the exception of cooked rattlesnake meat, which is commonly consumed in Texas and parts of the Midwestern United States.
In Asian countries such as China, Taiwan, Thailand, Indonesia, Vietnam, and Cambodia, drinking the blood of a snake—particularly the cobra—is believed to increase sexual virility. When possible, the blood is drained while the cobra is still alive, and it is usually mixed with some form of liquor to improve the taste.
The use of snakes in alcohol is accepted in some Asian countries. In such cases, one or more snakes are left to steep in a jar or container of liquor, as this is claimed to make the liquor stronger (as well as more expensive). One example of this is the Habu snake, which is sometimes placed in the Okinawan liqueur Habushu (ハブ酒), also known as "Habu Sake".
Snake wine (蛇酒) is an alcoholic beverage produced by infusing whole snakes in rice wine or grain alcohol. First recorded as being consumed in China during the Western Zhou dynasty, this drink is considered an important curative and is believed to reinvigorate a person according to traditional Chinese medicine
Pets
In the Western world, some snakes are kept as pets, especially docile species such as the ball python and corn snake. To meet the demand, a captive breeding industry has developed. Snakes bred in captivity are considered preferable to specimens caught in the wild and tend to make better pets. Compared with more traditional types of companion animal, snakes can be very low-maintenance pets; they require minimal space, as most common species do not exceed 5 feet (1.5 m) in length, and can be fed relatively infrequently—usually once every five to 14 days. Certain snakes have a lifespan of more than 40 years if given proper care.
Symbolism
In ancient Mesopotamia, Nirah, the messenger god of Ištaran, was represented as a serpent on kudurrus, or boundary stones. Representations of two intertwined serpents are common in Sumerian art and Neo-Sumerian artwork and still appear sporadically on cylinder seals and amulets until as late as the thirteenth century BC. The horned viper (Cerastes cerastes) appears in Kassite and Neo-Assyrian kudurrus and is invoked in Assyrian texts as a magical protective entity. A dragon-like creature with horns, the body and neck of a snake, the forelegs of a lion, and the hind-legs of a bird appears in Mesopotamian art from the Akkadian Period until the Hellenistic Period (323 BC–31 BC). This creature, known in Akkadian as the mušḫuššu, meaning "furious serpent", was used as a symbol for particular deities and also as a general protective emblem. It seems to have originally been the attendant of the Underworld god Ninazu, but later became the attendant to the Hurrian storm-god Tishpak, as well as, later, Ninazu's son Ningishzida, the Babylonian national god Marduk, the scribal god Nabu, and the Assyrian national god Ashur.
In Egyptian history, the snake occupies a primary role with the Nile cobra adorning the crown of the pharaoh in ancient times. It was worshipped as one of the gods and was also used for sinister purposes: murder of an adversary and ritual suicide (Cleopatra). The ouroboros was a well-known ancient Egyptian symbol of a serpent swallowing its own tail. The precursor to the ouroboros was the "Many-Faced", a serpent with five heads, who, according to the Amduat, the oldest surviving Book of the Afterlife, was said to coil around the corpse of the sun god Ra protectively. The earliest surviving depiction of a "true" ouroboros comes from the gilded shrines in the tomb of Tutankhamun. In the early centuries AD, the ouroboros was adopted as a symbol by Gnostic Christians and chapter 136 of the Pistis Sophia, an early Gnostic text, describes "a great dragon whose tail is in its mouth". In medieval alchemy, the ouroboros became a typical western dragon with wings, legs, and a tail.
In the Bible, King Nahash of Ammon, whose name means "Snake", is depicted very negatively, as a particularly cruel and despicable enemy of the ancient Hebrews.
The ancient Greeks used the Gorgoneion, a depiction of a hideous face with serpents for hair, as an apotropaic symbol to ward off evil. In a Greek myth described by Pseudo-Apollodorus in his Bibliotheca, Medusa was a Gorgon with serpents for hair whose gaze turned all those who looked at her to stone and was slain by the hero Perseus. In the Roman poet Ovid's Metamorphoses, Medusa is said to have once been a beautiful priestess of Athena, whom Athena turned into a serpent-haired monster after she was raped by the god Poseidon in Athena's temple. In another myth referenced by the Boeotian poet Hesiod and described in detail by Pseudo-Apollodorus, the hero Heracles is said to have slain the Lernaean Hydra, a multiple-headed serpent which dwelt in the swamps of Lerna.
The legendary account of the foundation of Thebes mentioned a monster snake guarding the spring from which the new settlement was to draw its water. In fighting and killing the snake, the companions of the founder Cadmus all perished – leading to the term "Cadmean victory" (i.e. a victory involving one's own ruin).
Three medical symbols involving snakes that are still used today are Bowl of Hygieia, symbolizing pharmacy, and the Caduceus and Rod of Asclepius, which are symbols denoting medicine in general.
One of the etymologies proposed for the common female first name Linda is that it might derive from Old German Lindi or Linda, meaning a serpent.
India is often called the land of snakes and is steeped in tradition regarding snakes. Snakes are worshipped as gods even today with many women pouring milk on snake pits (despite snakes' aversion for milk). The cobra is seen on the neck of Shiva and Vishnu is depicted often as sleeping on a seven-headed snake or within the coils of a serpent. There are also several temples in India solely for cobras sometimes called Nagraj (King of Snakes) and it is believed that snakes are symbols of fertility. There is a Hindu festival called Nag Panchami each year on which day snakes are venerated and prayed to. See also Nāga.
In India there is another mythology about snakes. Commonly known in Hindi as "Ichchhadhari" snakes. Such snakes can take the form of any living creature, but prefer human form. These mythical snakes possess a valuable gem called "Mani", which is more brilliant than diamond. There are many stories in India about greedy people trying to possess this gem and ending up getting killed.
The snake is one of the 12 celestial animals of Chinese zodiac, in the Chinese calendar.
Many ancient Peruvian cultures worshipped nature. They emphasized animals and often depicted snakes in their art.
Religion
Snakes are used in Hinduism as a part of ritual worship. In the annual Nag Panchami festival, participants worship either live cobras or images of Nāgas. Lord Shiva is depicted in most images with a snake coiled around his neck. Puranic literature includes various stories associated with snakes, for example Shesha is said to hold all the planets of the Universe on his hoods and to constantly sing the glories of Vishnu from all his mouths. Other notable snakes in Hinduism are Vasuki, Takshaka, Karkotaka, and Pingala. The term Nāga is used to refer to entities that take the form of large snakes in Hinduism and Buddhism.
Snakes have been widely revered in many cultures, such as in ancient Greece where the serpent was seen as a healer.[148] Asclepius carried a serpent wound around his wand, a symbol seen today on many ambulances. In Judaism, the snake of brass is also a symbol of healing, of one's life being saved from imminent death.
In religious terms, the snake and jaguar were arguably the most important animals in ancient Mesoamerica. "In states of ecstasy, lords dance a serpent dance; great descending snakes adorn and support buildings from Chichen Itza to Tenochtitlan, and the Nahuatl word coatl meaning serpent or twin, forms part of primary deities such as Mixcoatl, Quetzalcoatl, and Coatlicue." In the Maya and Aztec calendars, the fifth day of the week was known as Snake Day.
In some parts of Christianity, the redemptive work of Jesus Christ is compared to saving one's life through beholding the Nehushtan (serpent of brass). Snake handlers use snakes as an integral part of church worship, to demonstrate their faith in divine protection. However, more commonly in Christianity, the serpent has been depicted as a representative of evil and sly plotting, as seen in the description in Genesis of a snake tempting Eve in the Garden of Eden. Saint Patrick is purported to have expelled all snakes from Ireland while converting the country to Christianity in the 5th century, thus explaining the absence of snakes there.
In Christianity and Judaism, the snake makes its infamous appearance in the first book of the Bible when a serpent appears before Adam and Eve and tempts them with the forbidden fruit from the Tree of Knowledge. The snake returns in the Book of Exodus when Moses turns his staff into a snake as a sign of God's power, and later when he makes the Nehushtan, a bronze snake on a pole that when looked at cured the people of bites from the snakes that plagued them in the desert. The serpent makes its final appearance symbolizing Satan in the Book of Revelation: "And he laid hold on the dragon the old serpent, which is the devil and Satan, and bound him for a thousand years."
In Neo-Paganism and Wicca, the snake is seen as a symbol of wisdom and knowledge. Additionally, snakes are sometimes associated with Hecate, the Greek goddess of witchcraft.
Medicine
Several compounds from snake venoms are being researched as potential treatments or preventatives for pain, cancers, arthritis, stroke, heart disease, hemophilia, and hypertension, and to control bleeding (e.g. during surgery).
The fortified early Gothic church from the first half of the 14th century was built on the site of an older building. In the 15th century it was fortified with a wall and a wooden bell tower was built on the grounds in 1657. The single-nave space with a square-ended presbytery and a built-in sacristy has a painted cassette ceiling from 1758, the presbytery is characteristic by its rib vault. The mural paintings date back to the 60s of the 14th century and the creator of at least a part of them is the Master of Ochtiná presbytery. These interior frescoes were discovered in the early 20th century by I. Huszka who was restoring them in 1905. All the paintings, interior and exterior ones, were completely restored between 1983 and 1985 by J. Josefík, L. Székely and I. Žuch.
Within the almost intact medieval church, the murals have a uniquely strong impression and informative value, thanks to their scale and complexity of preservation. Thematically they focus on individual scenes from the Marian and the Passion cycle, but they do not have a uniform concept unlike the upper belt on the nave’s northern wall with a complete depiction of the St. Ladislaus legend.
The church in Ochtiná was formerly dedicated to St. Nicholas and is one of the oldest and most interesting landmarks of the Gemer countryside. The name of the village is most likely derived from the old German expression for the number eight: ocht, as an evidence of the area settled by German guests in the second half of the 13th century. According to historical sources, original eight German families established here a prosperous settlement founded on mining of iron ore located in the nearby Hrádok hill.
However, the layout of the church point to an older settlement which could have been destroyed during a Mongol invasion. This is indicated by a document from the king Belo IV, from 1243, by which he donates a large part of an area of the Slaná river valley for faithful services to Detrik and Filip Bubek. In 1318, Ochtiná was mentioned as a property of the Štítnik branch of the Bubek family, that certainly supported the construction of the local church and later its murals as well.
The Gothic church, built possibly on the site of a ruined Romanesque structure is a single-nave church with a polygonal-shaped chancel including a northern sacristy. Around the mid-14th century, the interiors were painted with figural wall paintings which were done by fresco technique. Research has shown that the tower had been built later, probably in second half of 15th century. Romanesque windows on the tower are secondarily used from other church in the area. At the beginning of the 16th century, the relatively small space of the church was extended with a northern side nave having a star-shaped vault.
In the first third of the 17th century, when the church was already Lutheran, medieval frescos were hidden under a white lime paint and, during the 18th century, the church was given a new Prussian vault over the nave.
Bodh Gaya, Gaya, Bihar, India.
Bodhgaya is the place where Buddha got enlightenment after seven weeks of meditation , so it's the most sacred place of Buddhism.
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Author: Andreas Nierhaus, Curator of Architecture/Wien Museum
Last updated January 2014
Architecture in Vienna
Vienna's 2,000-year history is present in a unique density in the cityscape. The layout of the center dates back to the Roman city and medieval road network. Romanesque and Gothic churches characterize the streets and squares as well as palaces and mansions of the baroque city of residence. The ring road is an expression of the modern city of the 19th century, in the 20th century extensive housing developments set accents in the outer districts. Currently, large-scale urban development measures are implemented; distinctive buildings of international star architects complement the silhouette of the city.
Due to its function as residence of the emperor and European power center, Vienna for centuries stood in the focus of international attention, but it was well aware of that too. As a result, developed an outstanding building culture, and still today on a worldwide scale only a few cities can come up with a comparable density of high-quality architecture. For several years now, Vienna has increased its efforts to connect with its historical highlights and is drawing attention to itself with some spectacular new buildings. The fastest growing city in the German-speaking world today most of all in residential construction is setting standards. Constants of the Viennese architecture are respect for existing structures, the palpability of historical layers and the dialogue between old and new.
Culmination of medieval architecture: the Stephansdom
The oldest architectural landmark of the city is St. Stephen's Cathedral. Under the rule of the Habsburgs, defining the face of the city from the late 13th century until 1918 in a decisive way, the cathedral was upgraded into the sacral monument of the political ambitions of the ruling house. The 1433 completed, 137 meters high southern tower, by the Viennese people affectionately named "Steffl", is a masterpiece of late Gothic architecture in Europe. For decades he was the tallest stone structure in Europe, until today he is the undisputed center of the city.
The baroque residence
Vienna's ascension into the ranks of the great European capitals began in Baroque. Among the most important architects are Johann Bernhard Fischer von Erlach and Johann Lucas von Hildebrandt. Outside the city walls arose a chain of summer palaces, including the garden Palais Schwarzenberg (1697-1704) as well as the Upper and Lower Belvedere of Prince Eugene of Savoy (1714-22). Among the most important city palaces are the Winter Palace of Prince Eugene (1695-1724, now a branch of the Belvedere) and the Palais Daun-Kinsky (auction house in Kinsky 1713-19). The emperor himself the Hofburg had complemented by buildings such as the Imperial Library (1722-26) and the Winter Riding School (1729-34). More important, however, for the Habsburgs was the foundation of churches and monasteries. Thus arose before the city walls Fischer von Erlach's Karlskirche (1714-39), which with its formal and thematic complex show façade belongs to the major works of European Baroque. In colored interior rooms like that of St. Peter's Church (1701-22), the contemporary efforts for the synthesis of architecture, painting and sculpture becomes visible.
Upgrading into metropolis: the ring road time (Ringstraßenzeit)
Since the Baroque, reflections on extension of the hopelessly overcrowed city were made, but only Emperor Franz Joseph ordered in 1857 the demolition of the fortifications and the connection of the inner city with the suburbs. 1865, the Ring Road was opened. It is as the most important boulevard of Europe an architectural and in terms of urban development achievement of the highest rank. The original building structure is almost completely preserved and thus conveys the authentic image of a metropolis of the 19th century. The public representational buildings speak, reflecting accurately the historicism, by their style: The Greek Antique forms of Theophil Hansen's Parliament (1871-83) stood for democracy, the Renaissance of the by Heinrich Ferstel built University (1873-84) for the flourishing of humanism, the Gothic of the Town Hall (1872-83) by Friedrich Schmidt for the medieval civic pride.
Dominating remained the buildings of the imperial family: Eduard van der Nüll's and August Sicardsburg's Opera House (1863-69), Gottfried Semper's and Carl Hasenauer's Burgtheater (1874-88), their Museum of Art History and Museum of Natural History (1871-91) and the Neue (New) Hofburg (1881-1918 ). At the same time the ring road was the preferred residential area of mostly Jewish haute bourgeoisie. With luxurious palaces the families Ephrussi, Epstein or Todesco made it clear that they had taken over the cultural leadership role in Viennese society. In the framework of the World Exhibition of 1873, the new Vienna presented itself an international audience. At the ring road many hotels were opened, among them the Hotel Imperial and today's Palais Hansen Kempinski.
Laboratory of modernity: Vienna around 1900
Otto Wagner's Postal Savings Bank (1903-06) was one of the last buildings in the Ring road area Otto Wagner's Postal Savings Bank (1903-06), which with it façade, liberated of ornament, and only decorated with "functional" aluminum buttons and the glass banking hall now is one of the icons of modern architecture. Like no other stood Otto Wagner for the dawn into the 20th century: His Metropolitan Railway buildings made the public transport of the city a topic of architecture, the church of the Psychiatric hospital at Steinhofgründe (1904-07) is considered the first modern church.
With his consistent focus on the function of a building ("Something impractical can not be beautiful"), Wagner marked a whole generation of architects and made Vienna the laboratory of modernity: in addition to Joseph Maria Olbrich, the builder of the Secession (1897-98) and Josef Hoffmann, the architect of the at the western outskirts located Purkersdorf Sanatorium (1904) and founder of the Vienna Workshop (Wiener Werkstätte, 1903) is mainly to mention Adolf Loos, with the Loos House at the square Michaelerplatz (1909-11) making architectural history. The extravagant marble cladding of the business zone stands in maximal contrast, derived from the building function, to the unadorned facade above, whereby its "nudity" became even more obvious - a provocation, as well as his culture-critical texts ("Ornament and Crime"), with which he had greatest impact on the architecture of the 20th century. Public contracts Loos remained denied. His major works therefore include villas, apartment facilities and premises as the still in original state preserved Tailor salon Knize at Graben (1910-13) and the restored Loos Bar (1908-09) near the Kärntner Straße (passageway Kärntner Durchgang).
Between the Wars: International Modern Age and social housing
After the collapse of the monarchy in 1918, Vienna became capital of the newly formed small country of Austria. In the heart of the city, the architects Theiss & Jaksch built 1931-32 the first skyscraper in Vienna as an exclusive residential address (Herrengasse - alley 6-8). To combat the housing shortage for the general population, the social democratic city government in a globally unique building program within a few years 60,000 apartments in hundreds of apartment buildings throughout the city area had built, including the famous Karl Marx-Hof by Karl Ehn (1925-30). An alternative to the multi-storey buildings with the 1932 opened International Werkbundsiedlung was presented, which was attended by 31 architects from Austria, Germany, France, Holland and the USA and showed models for affordable housing in greenfield areas. With buildings of Adolf Loos, André Lurçat, Richard Neutra, Gerrit Rietveld, the Werkbundsiedlung, which currently is being restored at great expense, is one of the most important documents of modern architecture in Austria.
Modernism was also expressed in significant Villa buildings: The House Beer (1929-31) by Josef Frank exemplifies the refined Wiener living culture of the interwar period, while the house Stonborough-Wittgenstein (1926-28, today Bulgarian Cultural Institute), built by the philosopher Ludwig Wittgenstein together with the architect Paul Engelmann for his sister Margarete, by its aesthetic radicalism and mathematical rigor represents a special case within contemporary architecture.
Expulsion, war and reconstruction
After the "Anschluss (Annexation)" to the German Reich in 1938, numerous Jewish builders, architects (female and male ones), who had been largely responsible for the high level of Viennese architecture, have been expelled from Austria. During the Nazi era, Vienna remained largely unaffected by structural transformations, apart from the six flak towers built for air defense of Friedrich Tamms (1942-45), made of solid reinforced concrete which today are present as memorials in the cityscape.
The years after the end of World War II were characterized by the reconstruction of the by bombs heavily damaged city. The architecture of those times was marked by aesthetic pragmatism, but also by the attempt to connect with the period before 1938 and pick up on current international trends. Among the most important buildings of the 1950s are Roland Rainer's City Hall (1952-58), the by Oswald Haerdtl erected Wien Museum at Karlsplatz (1954-59) and the 21er Haus of Karl Schwanzer (1958-62).
The youngsters come
Since the 1960s, a young generation was looking for alternatives to the moderate modernism of the reconstruction years. With visionary designs, conceptual, experimental and above all temporary architectures, interventions and installations, Raimund Abraham, Günther Domenig, Eilfried Huth, Hans Hollein, Walter Pichler and the groups Coop Himmelb(l)au, Haus-Rucker-Co and Missing Link rapidly got international attention. Although for the time being it was more designed than built, was the influence on the postmodern and deconstructivist trends of the 1970s and 1980s also outside Austria great. Hollein's futuristic "Retti" candle shop at Charcoal Market/Kohlmarkt (1964-65) and Domenig's biomorphic building of the Central Savings Bank in Favoriten (10th district of Vienna - 1975-79) are among the earliest examples, later Hollein's Haas-Haus (1985-90), the loft conversion Falkestraße (1987/88) by Coop Himmelb(l)au or Domenig's T Center (2002-04) were added. Especially Domenig, Hollein, Coop Himmelb(l)au and the architects Ortner & Ortner (ancient members of Haus-Rucker-Co) by orders from abroad the new Austrian and Viennese architecture made a fixed international concept.
MuseumQuarter and Gasometer
Since the 1980s, the focus of building in Vienna lies on the compaction of the historic urban fabric that now as urban habitat of high quality no longer is put in question. Among the internationally best known projects is the by Ortner & Ortner planned MuseumsQuartier in the former imperial stables (competition 1987, 1998-2001), which with institutions such as the MUMOK - Museum of Modern Art Foundation Ludwig, the Leopold Museum, the Kunsthalle Wien, the Architecture Center Vienna and the Zoom Children's Museum on a wordwide scale is under the largest cultural complexes. After controversies in the planning phase, here an architectural compromise between old and new has been achieved at the end, whose success as an urban stage with four million visitors (2012) is overwhelming.
The dialogue between old and new, which has to stand on the agenda of building culture of a city that is so strongly influenced by history, also features the reconstruction of the Gasometer in Simmering by Coop Himmelb(l)au, Wilhelm Holzbauer, Jean Nouvel and Manfred Wehdorn (1999-2001). Here was not only created new housing, but also a historical industrial monument reinterpreted into a signal in the urban development area.
New Neighborhood
In recent years, the major railway stations and their surroundings moved into the focus of planning. Here not only necessary infrastructural measures were taken, but at the same time opened up spacious inner-city residential areas and business districts. Among the prestigious projects are included the construction of the new Vienna Central Station, started in 2010 with the surrounding office towers of the Quartier Belvedere and the residential and school buildings of the Midsummer quarter (Sonnwendviertel). Europe's largest wooden tower invites here for a spectacular view to the construction site and the entire city. On the site of the former North Station are currently being built 10,000 homes and 20,000 jobs, on that of the Aspangbahn station is being built at Europe's greatest Passive House settlement "Euro Gate", the area of the North Western Railway Station is expected to be developed from 2020 for living and working. The largest currently under construction residential project but can be found in the north-eastern outskirts, where in Seaside Town Aspern till 2028 living and working space for 40,000 people will be created.
In one of the "green lungs" of Vienna, the Prater, 2013, the WU campus was opened for the largest University of Economics of Europe. Around the central square spectacular buildings of an international architect team from Great Britain, Japan, Spain and Austria are gathered that seem to lead a sometimes very loud conversation about the status quo of contemporary architecture (Hitoshi Abe, BUSarchitektur, Peter Cook, Zaha Hadid, NO MAD Arquitectos, Carme Pinós).
Flying high
International is also the number of architects who have inscribed themselves in the last few years with high-rise buildings in the skyline of Vienna and make St. Stephen's a not always unproblematic competition. Visible from afar is Massimiliano Fuksas' 138 and 127 meters high elegant Twin Tower at Wienerberg (1999-2001). The monolithic, 75-meter-high tower of the Hotel Sofitel at the Danube Canal by Jean Nouvel (2007-10), on the other hand, reacts to the particular urban situation and stages in its top floor new perspectives to the historical center on the other side.
Also at the water stands Dominique Perrault's DC Tower (2010-13) in the Danube City - those high-rise city, in which since the start of construction in 1996, the expansion of the city north of the Danube is condensed symbolically. Even in this environment, the slim and at the same time striking vertically folded tower of Perrault is beyond all known dimensions; from its Sky Bar, from spring 2014 on you are able to enjoy the highest view of Vienna. With 250 meters, the tower is the tallest building of Austria and almost twice as high as the St. Stephen's Cathedral. Vienna, thus, has acquired a new architectural landmark which cannot be overlooked - whether it also has the potential to become a landmark of the new Vienna, only time will tell. The architectural history of Vienna, where European history is presence and new buildings enter into an exciting and not always conflict-free dialogue with a great and outstanding architectural heritage, in any case has yet to offer exciting chapters.
Info: The folder "Architecture: From Art Nouveau to the Presence" is available at the Vienna Tourist Board and can be downloaded on www.wien.info/media/files/guide-architecture-in-wien.pdf.
The Trinity Church is a church building in Constance on Lake Constance . Since it was built in the late 13th century for the local monastery of the Augustinian Hermits , it is also called the Augustinian Church. It functioned until the dissolution of the monastery in 1802 as a monastery church and from the 17th century in addition as a garrison church , then as Spitalkirche , Old Catholic house of worship and today ecumenical " City Church ". Through their harmonious combination of simple Gothic mendicant architecture , late gothicIt is one of the city's most important sacral architectural monuments and landmarks of Constance, with frescoes and baroque paintings and stuccoes .
Architecture
The Trinity Church is a simple three-aisled basilica with a recently completed choir without a transept . Without its original connection to the monastery buildings, it is today surrounded by residential and commercial buildings on the southern edge of the city center of Konstanz. As a mendicant church, it does not have a bell tower , but only a small ridge turret . The nave has since 1740 a Baroque mirror vault on; before that, the ceiling (like the side aisles) had been flat.
The nave has simple octagonal columns with pointed arcades. Their capitals are remodeled baroque. Compared to the Middle Ages, the floor is raised by about 130-190 cm, as was repeatedly poured against the bottom of nachdrückende groundwater ; The surrounding streets were also considerably elevated in the 19th century. The original impression of space is thus significantly reduced and the bases of the columns disappeared into the ground; Only with two columns, the base is visible through a excavation shaft. For static reasons, the floor could not be lowered back to its original level even in the most recent renovation.
Frescoes
Church Fathers (?) On the south wall
Frescoes in the background of the pulpit
North Face: Old Testament medallions (above), monks and religious saints (center), enthroned saints (below)
Of particular importance are the frescoes on the high walls of the central nave, which were built after the Council of Constance (1414-1418), ie in the first half of the 15th century. The fresco paintings with an area of 530 m² are divided into three horizontal stripes, of which the upper one is largely destroyed by the baroque conversion. As painters the names Heinrich Grübel, Kaspar sinners and Hans Lederhoser are handed down. There are no other works known of these alleged Constance artists. The painting was above the tape al fresco (wet plaster). executed, below al secco(dry plaster). The frescoes of the north wall are significantly influenced by the generously reconstructed restoration around 1907, while the south wall still largely correspond to the originals. The Rococo stucco in particular disturbs the picture fields. The images were probably based on a stringent program, which was difficult to determine due to improper restoration measures in the years 1906/1907.
Also, the restoration and investigation of the murals in the years 2004/2006 gave no information as far as an interpretation of the picture program was concerned. It was only in 2011 that the Konstanz historian Harald Derschka made it possible to recognize previously unknown image details of the monk pictures and to meaningfully interpret the picture program. He had received by the Landesdenkmalamt the research of the church historian and theologian Karl Suso Frank (1933-2006). He had come across a document from the time of the Council of Constance in the Danzingen Marienbibliothek, in which a Polish participant painted the murals and described their contents. [1]
The lower row of Langhaus frescos shows in the gussets between the Langhausarkaden saint figures , a total of four on the south wall and seven on the north wall. Some figures sit on a kind of throne under a perspective painted canopy . On the north wall are memories of the founder Sigismund of Luxembourg and his wife Barbara von Cilli ; but are not presented themselves but their saintly patron saints , the Holy King Sig (is) mouth (above the organ loft), the Saint Barbara (?) and other male and female saints, but the lack ofAttributes can no longer be identified.
On the middle picture frieze scenes of religious history and monasticism are shown. Framed by a perspective painted architecture of colonnades and floor tiles, on the south wall a series of large-sized religious saints can be seen, each of which presents a scroll or banner to a small group of monks . The inscription "Augustinus" represents the Augustine ruleon which build up numerous religious communities. The saints could not be identified in detail yet. On the north wall, a long line of kneeling monks are shown, who turn to the western exit of the church, visually articulated both friezes by painted arcades. The faces of the monks are individually designed. According to the different religious affiliation their habits are different from group to group.
In the vaulted arches some medallions of Old Testament prophets are partially preserved, including Moses with the tablets of the law , Ezekiel (?), Micha (?) And David (?). Before the baroque reconstruction of the upper level , these circular fields alternated with roughly equal oculi . Around the picture fields are painted small figures, angels, animals and grotesques .
The vault of the central nave is dominated by the central ceiling painting The Image of St. Augustine in the Sky , created in 1740 by the Constance-based Baroque painter Franz Joseph Spiegler .
The construction of the church in Kyjatice dates back to the end of the 13th or the beginning of the 14th century. Like the surrounding villages, Kyjatice adopted ideas of the Reformation: we know the names of evangelical pastors working here since the 1620s. With a short break during the re-Catholicization, the Kyjatice Church has always been and still is Lutheran. This originally fortified Romanesque-Gothic single-nave church with a square chancel, an eastern tower and a northern sacristy, hides rare murals. The fresco decoration of the church comes from two stages – from the end of the 14th (chancel, triumphal arch) and the first half of the 15th century (north wall of the nave).
After the adoption of the Reformation, the murals were whitewashed, but discovered in 1894 (by István Groh) and repainted. Their discovery and restoration took place in the 1980s, when a comprehensive research of the church took place. We find scenes of apostles, several saints and prophets in medallions, the figures of wise and obscure virgins on the triumphal arch lining. On the triumphal arch, we find scenes from the life of Christ – the kiss of Judas, Christ before Pilate, Carrying the Cross, the Crucifixion and Lamentation of Christ (Pietà). The nave is dominated on the northern wall by a unique depiction of the Last Judgment in the form of a large circle, centered on Jesus in the almond tree. On the fresco, Jesus judges the living and the dead, rising from the graves, and dividing them into righteous and condemned. The nine fields of the circle represent the onset of nine distinctive angelic choirs and crowds of the victorious church. The painting is reminiscent of illustrations in the manuscripts of St. Hildegard of Bingen. The painting is dated to the year 1486. In addition to frescoes, the Gothic is also represented by a southern late Gothic portal and doors and a simple portal to the sacristy. The wooden coffered ceiling with Renaissance floral ornaments dates from 1637, from the times when the church was used by the Lutherans (similar to other wooden furniture – the western tribune or the so called patronage bench). On the ceiling, there are also the names of the masters: Lazar Galko and Jakub Stephanik, the mayor. The simple stone baptismal font is probably from the 13th century. The Renaissance altar from 1678 fills the entire façade of the chancel. The sculptures of the three apostles have a central position, with Jesus Christ and two angels in the extension. The richly carved wooden baroque pulpit dates from the first third of the 18th century.
A cathedral without a bishop: St. Stephan in Vienna
In order to fully fulfill the function of a capital in its medieval understanding, Vienna lacked a decisive factor: Vienna was indeed a major city, but not the seat of a bishopric, but was subordinate to the Prince-Bishop of Passau in ecclesiastical matters. St. Stephen, the most important church in the city, had only the rank of a parish church.
Therefore, the first attempts to found a diocese in Vienna date back to the time of the Babenbergs. Also the under Ottokar II Přemysl after the fire of 1258 begun generous new building of the Saint Stephen's church in the late Romanesque style pursued this goal.
The Habsburgs' representational aspirations also focused on St. Stephen after they had taken control of Austria. Albrecht I began in 1304 with the construction of a new choir. The highlight, however, was reached under Duke Rudolf IV. This ambitious Habsburg wanted to turn Vienna into an important royal residence and St. Stephen as the "Capella regia Austriaca" into the court church of the Austrian sovereign princes, the sacral center of the country.
The background for this lay in the competition with the dynasty of Luxembourg: Emperor Charles IV was just about to expand his residence Prague to a metropolis of European importance. One of his measures was the elevation of Prague to the Archbishopric of 1344, which prompted the great expansion of St. Vitus' Cathedral on Prague's Hradcany.
Rudolf's plan to make St. Stephen the seat of a bishop failed because of the resistance of Passau, because the bishop rightly feared a reduction of his diocese. Nevertheless, Rudolf found a way to give St. Stephan a special rank. In 1359 he obtained the papal confirmation for the founding of a collegiate, an association of 24 dressed in cardinal red robes priests, which was headed by a provost in a bishop-like costume. By subordinating the collegiate directly to the Pope, it was beyond the Passau influence. Thanks to complicated ecclesiastical chess moves he finally succeeded in 1365 to transfer his foundation to St. Stephen, which increased the importance of the church.
This was also reflected in the structural design of the church. In 1359 Rudolf IV began with a large-scale expansion, which was to bear all the symbols of a ruling church: a princely gallery above the west portal was framed by two-storey Duke's chapels, in which the relic treasure was kept. A princely tomb was erected as the tomb of the rulers of the country and finally four towers were planned, which was actually a building prerogative of a bishop's church. By integrating parts of the late Romanesque predecessor building (the main portal and the westwork called "Giant Gate") into his concept, Rudolf gave his building program historical depth.
With the death of Rudolf, the interest of the Habsburgs in St. Stephen palpably came to an end, and the citizens of Vienna took the initiative for the further expansion of the church. Only with Frederick III., who saw his example in Rudolf IV, did a Habsburg take part in the expansion of the church. Friedrich ordered the beginning of the work on the north tower. However, his high tomb in the Apostle Choir of the Dome, which is another notable example of the dynastic program of the Habsburgs in the late Middle Ages, is particularly reminiscent of this Habsburg.
Frederick III. finally managed to bring the prestige matter of his ancestor Rudolf to a successful end: 1469 Frederick III succeeded in to bring about the Pope to elevate Vienna to a diocese. Although the Viennese diocese initially had only a minimal extension - it was smaller than the current urban area - but the Habsburgs had imposed their own will: The Cathedral of St. Stephen had finally a bishop.
Eine Kathedrale ohne Bischof: St. Stephan in Wien
Um im mittelalterlichen Verständnis die Funktion einer Hauptstadt vollends zu erfüllen, fehlte Wien eine entscheidende Sache: Wien war zwar eine bedeutende Großstadt, aber nicht Sitz eines Bistums, sondern unterstand in kirchlichen Belangen dem Fürstbischof von Passau. St. Stephan, die wichtigste Kirche der Stadt, hatte nur den Rang einer Pfarrkirche.
Daher datieren die ersten Versuche einer Bistumsgründung in Wien bereits in die Zeit der Babenberger. Auch der unter Ottokar II. Přemysl nach dem Brand von 1258 begonnene großzügige Neubau der Stephanskirche im spätromanischen Stil verfolgte dieses Ziel.
Auf St. Stephan konzentrierten sich auch die Repräsentationsbestrebungen der Habsburger, nachdem sie die Herrschaft in Österreich übernommen hatten. Albrecht I. begann bereits 1304 mit dem Bau eines neuen Chores. Der Höhepunkt wurde jedoch unter Herzog Rudolf IV. erreicht. Dieser ehrgeizige Habsburger wollte Wien zu einer bedeutenden Residenzstadt und St. Stephan als “Capella regia Austriaca”, als Hofkirche der österreichischen Landesfürsten, zum sakralen Zentrum des Landes machen.
Der Hintergrund dafür lag in der Konkurrenz mit der Dynastie der Luxemburger: Kaiser Karl IV. war gerade dabei, seine Residenz Prag zu einer Metropole europäischer Geltung auszubauen. Eine seiner Maßnahmen war die Erhebung Prags zum Erzbistum 1344, was den Anstoß gab für den großartigen Ausbau des Veitsdomes am Prager Hradschin.
Rudolfs Plan, St. Stephan zum Sitz eines Bischofs zu machen, scheiterte zwar am Widerstand Passaus, denn der Bischof fürchtete zu Recht eine Verkleinerung seiner Diözese. Dennoch fand Rudolf einen Weg, St. Stephan einen besonderen Rang zu verleihen. 1359 erwirkte er die päpstliche Bestätigung für die Gründung eines Kollegiatstiftes, einer Vereinigung von 24 in kardinalsrote Gewänder gekleideten Priestern, denen ein Probst in bischofsähnlicher Tracht vorstand. Indem er das Kollegiat direkt dem Papst unterstellte, war es dem Passauer Einfluss entzogen. Dank komplizierter kirchenrechtlicher Schachzüge gelang es ihm schließlich 1365 seine Stiftung auf St. Stephan zu übertragen, was die Bedeutung des Gotteshauses erhöhte.
Dies schlug sich auch in der baulichen Gestalt der Kirche nieder. 1359 begann Rudolf IV. mit einem groß angelegten Ausbau, der alle Symbole einer Herrscherkirche tragen sollte: Eine Fürstenempore über dem Westportal wurde von doppelstöckigen Herzogskapellen eingerahmt, in denen der Reliquienschatz verwahrt wurde. Eine Fürstengruft als Grablege der Herrscher des Landes wurde angelegt und schließlich waren vier Türme geplant, was eigentlich ein bauliches Vorrecht einer Bischofskirche war. Indem Rudolf Teile des spätromanischen Vorgängerbaues (das als “Riesentor” bezeichnete Hauptportal und das Westwerk) in sein Konzept integrieren ließ, gab er seinem Bauprogramm historische Tiefe.
Mit dem Tod Rudolfs erlosch das Interesse der Habsburger an St. Stephan spürbar, die Wiener Bürgerschaft übernahm die Initiative für den weiteren Ausbau der Kirche. Erst mit Friedrich III., der in Rudolf IV. sein Vorbild sah, beteiligte sich wieder ein Habsburger am Ausbau der Kirche. Friedrich veranlasste den Beginn der Arbeiten am Nordturm. An diesen Habsburger erinnert vor allem jedoch sein Hochgrab im Apostelchor des Domes, ein weiteres bemerkenswertes Beispiel für das dynastische Programm der Habsburger im Spätmittelalter.
Friedrich III. gelang es schließlich auch, die Prestigeangelegenheit seines Ahnen Rudolf zu einem erfolgreichen Ende zu bringen: 1469 erreichte Friedrich III. beim Papst die Erhebung Wiens zum Bistum. Die Wiener Diözese hatte zwar zunächst nur eine minimale Ausdehung – sie war kleiner als das heutige Stadtgebiet – aber die Habsburger hatten ihren Willen durchgesetzt: Der Dom zu St. Stephan hatte endlich einen Bischof.
Martin Mutschlechner
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The monastery of the Benedictine Order at Pannonhalma was founded in 996 in Western Hungary and had a major role in the diffusion of Christianity in medieval Central Europe. The monastery shows a stratification of different architectural styles and various buildings.
Among these buildings: a school (the first ever school founded in the country), the monastic complex – home to the monks whose life is still based on St. Benedict’s Rule ‘Ora et labora’ -, the tourist welcome points and hospitality facilities, the Chapel of Our Lady, the Millennium Chapel and the botanical and herbal gardens.
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Plešivec is an ancient seat of the Bubek family. The Ákoš family, the ancestors of the Bubeks, received it from King Belo IV. in 1243, after the battle on the Slaná River, where the ancestor of the Bubeks, Detrik, allegedly saved the king’s life. After stabilizing his position in 1320, Dominik Bubek built a water castle in Plešivec. In its vicinity, he built a monumental church, which also served as a burial place for the representatives of the family. It was constructed on the site of an older church built by his ancestors. The church, originally nearly twice as long as it is now, was a two-nave Gothic building with a polygonal ending of the chancel, originally vaulted on the central pillars.
From 1349, we have a record of the request of Juraj Bubek to the Pope for the possibility of collecting the indulgences to finance its construction. In the middle of the 14th century, the interior of the church was completed with fresco paintings of very high quality, carried out by Italian masters. In the first quarter of the 15th century, the church was completed with the north-facing funeral chapel of the Bubeks, built according to the pattern of the Spiš funeral chapels. We enter into the chapel through an impressive portal, the architecture of which is associated with the works of the Cathedral of St. Elizabeth in Košice. In its interior, we find three three-part late Gothic windows with an original tracery in the ogive arch shape and corbels of the former vaults.
In 1558, at the time of the Turkish threat, the church was severely damaged, the vault collapsed and the building remained as a ruin until its reconstruction in 1617. By that time, the church was taken over by the reformed believers who reduced its layout to its current length of 19 meters; they covered the nave with a flat ceiling and closed the entrance to the unused chapel. At that stage, the entrance to the church was established from the south and three window openings were made on the south wall. From that period comes a valuable matroneum with painted decorations from 1627. In 1807, a bell-tower was built, a beautiful example of the so-called Gemer classicism.
A full-frame vertical shot of the highly ornate Baroque high altar inside the Wallfahrtsbasilika St. Georg in Walldürn, Germany. The altar is richly decorated with dark marble columns, golden accents, and multiple white statues, including a central figure of the Virgin Mary surrounded by angels and other saints. A lit candle stands on an intricately designed metal railing in the foreground. The background shows parts of the church's vaulted ceiling with frescoes and a large window with a geometric pattern.