Major explorations after the Age of Discovery to locate the source of the River Nile. Expeditions by Burton and Speke (1857–1858) and Speke and Grant (1863) located Lake Tanganyika and Lake Victoria. It was eventually proved to be the latter from which the Nile flowed. Explorers were also active in other parts of the continent. Southern Morocco, the Sahara and the Sudan were traversed in many directions between 1860 and 1875 by Georg Schweinfurth and Gustav Nachtigal. These travellers not only added considerably to geographical knowledge, but obtained invaluable information concerning the people, languages and natural history of the countries in which they sojourned. Among the discoveries
Misri legend School of anthropology, and would also influence proponents of polygenism. The British explorer John Hanning Speke popularized the ancient Hamitic peregrinations in his publications on his search for the source of the Nile River. Speke believed that his explorations uncovered the link between "civilized" North Africa and "primitive" central Africa. Describing the Ugandan Kingdom of Buganda, he argued that its "barbaric civilization" had arisen from a nomadic pastoralist race who had migrated from the north and was related to the Hamitic Oromo (Galla) of Ethiopia. In his "Theory of Conquest of Inferior by Superior Races" (1863), Speke would also attempt