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 Speke (1442-1518) John Speke (1442-1518) Sir John Speke (1442–1518) of Whitelackington, Somerset and of Heywood in the parish of Wembworthy and of Bramford Speke both in Devon, was Sheriff of Devon in 1517 and a Member of Parliament (1477). He was knighted in 1501. His monument is the "Speke Chantry" in Exeter Cathedral in which survives his recumbent effigy. He was born in about 1442, the son and heir of Sir John Speke (died 1444) (buried at Bramford Speke) of Wembworthy and Bramford Speke, Devon, by his wife Alice Beauchamp (died 1445/46) (who survived him and remarried to Henry Hull) daughter and