"Dr. Augustus Casely-Hayford debunks the nonsense notion that Africa has no history, with an African history lesson that dates back to before the 12th century. Back to Great Zimbabwe, an ancient city whose mysterious origins and extremely advanced architecture continue to confound archeologists. Back to when Mansa Musa, whose wealth was so great that his caravans stretched out as far as the eyes could see, ruled the Mali empire and constructed schools and libraries — most notably the libraries of Timbuktu that are still home to hundreds of thousands of medieval texts.
Eighteen minutes is hardly enough time to capture the history of any culture, much less that of a continent with a story as deep as Africa’s. Much of what Dr. Gus speaks of isn’t taught in schools in the first place … but that is a conversation for another day."
https://blog.ted.com/a-new-map-deep-history-and-the-far-future-at-tedglobal-session-1/