Collage

Rosa Parks defies segregation on Alabam bus, photo taken by Chris Green, 2005. www.flickr.com/photos/chrisgreen/56342295/sizes/o/in/phot...

President Obama's official portrait, taken by Pete Souza, 2009. www.flickr.com/photos/blogumentary/3198181038/sizes/o/in/...

Maya Angelou attends the 2011 Common Ground Gala fundraiser, taken by Barry Brecheisen. www.flickr.com/photos/chicagofabulous/5638341329/sizes/z/...

Michael Jackson's photo by Roadsidepictures. www.flickr.com/photos/roadsidepictures/3660588125/sizes/o...

Malcolm X by Aoyan, 2008. images.cdn.fotopedia.com/flickr-3837362354-original.jpg

Graffitti of Notorious BIG by Aaron H. 2008. www.flickr.com/photos/aaron-h/3286153792/sizes/o/in/photo...

Tuskegee Airmen dedication by Raymond M. 2008. www.flickr.com/photos/optikalblitz/2931863567/sizes/o/in/...

"Martin Luther King Jr." "by Mike Licht www.flickr.com/photos/notionscapital/5360731135/sizes/o/i...;

Done