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This is the first book of its kind in the English-speaking world. While several books on African American science and invention have been published no work has yet attempted to give serious treatment to the technologies of early Africa? Five centuries of falsehoods have been exploded in just five years. These years have seen the discovery of African steel-smelting in Tanzania 1,500-2,000 years ago, an astronomical observatory in Kenya 300 years before Christ, the cultivation of cereals and other crops by Africans in the Nile Valley 7,000 years before any other civilization, the domestication of cattle in Kenya 15,000 years ago, the domestication of fire by Africans 1,400,000 years ago (one million years before its first known use in China) the use of tetracycline by an ancient African population fourteen centuries ago, an African glider-plane 2,300 years old, a probe by microwave beams of an American radar satellite beneath the sands of the Sahara, revealing cultures 200,000 years old and the traces of ancient rivers running from this African center. Some of these buried stream valleys seem to be ?ancient connections to the Upper Nile tributaries,? towards which blacks migrated, later peopling Nubia and Egypt.