books.google.es - One of UNESCO's most important publishing projects in the last thirty years, the General History of Africa marks a major breakthrough in the recognition of Africa's cultural heritage. Offering an internal perspective of Africa, the eight-volume work provides a comprehensive approach to the history of...http://books.google.es/books/about/Africa_from_the_Twelfth_to_the_Sixteenth.html?hl=es&id=TpjwF--kPL4C&utm_source=gb-gplus-shareAfrica from the Twelfth to the Sixteenth Century