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
John Hanning Speke it was vast and they only could get small canoes from the locals. Burton was too ill to journey and thus Speke crossed the lake with a small crew and some canoes to try to rent a larger vessel from an Arab who, they were told, had a large boat and lived on the west side of the lake. (Lake Tanganyika is over 400 miles long on the north-south axis but only about 30 miles wide.) During this trip Speke, marooned on an island, suffered severely when he became temporarily deaf after a beetle crawled into his ear and he