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Bent Pyramid, [Dahshur Necropolis] Egypt
Prototype Pyramid 54 and 43 Degrees Angle
Base Foundation collapse problems forced angle to be reduced
Sneferu (2575-2551 BCE) 4600 years ago
4th Dynasty, Old Kingdom
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[Wikipedia] Bent Pyramid [No.5]
en.wikipedia.org/wiki/Bent_Pyramid
[Wikipedia] List of Egyptian Pyramids
Bent Pyramid, [Dahshur Necropolis] Egypt
Prototype Pyramid 54 and 43 Degrees Angle
Base Foundation collapse problems forced angle to be reduced
Sneferu (2575-2551 BCE) 4600 years ago
4th Dynasty, Old Kingdom
.......................................................................................................................
[Wikipedia] Bent Pyramid [No.5]
en.wikipedia.org/wiki/Bent_Pyramid
[Wikipedia] List of Egyptian Pyramids