Africa's Great Civilizations, Episode 4: Cities

Henry Louis Gates, Jr. takes a new look at the history of Africa, from the birth of humankind to the dawn of the 20th century. This is a breathtaking and personal journey through two hundred thousand years of history, from the origins, on the African continent, of art, writing and civilization itself, through the millennia in which Africa and Africans shaped not only their own rich civilizations, but also the wider world.