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
Early history of Uganda the Acholi responded more favourably to the Egyptian demand for ivory. They were already famous hunters and quickly acquired guns in return for tusks. The guns permitted the Acholi to retain their independence but altered the balance of power within Acholi territory, which for the first time experienced unequal distribution of wealth based on control of firearms. Meanwhile, Buganda was receiving not only traded goods and guns but a stream of foreign visitors as well. The explorer John Hanning Speke passed through Buganda in 1862 and claimed he had discovered the source of the Nile. Both Speke and Stanley (based