History of Africa Other significant European explorers included Heinrich Barth, Henry Morton Stanley (coiner of the term "Dark Continent" for Africa in an 1878 book), Silva Porto, Alexandre de Serpa Pinto, Rene Caille, Friedrich Gerhard Rohlfs, Gustav Nachtigal, George Schweinfurth, and Joseph Thomson. The most famous of the explorers was David Livingstone, who explored southern Africa and traversed the continent from the Atlantic at Luanda to the Indian Ocean at Quelimane. European explorers made use of African guides and servants, and established long-distance trading routes were used. Missionaries attempting to spread Christianity also increased European knowledge of Africa. Between 1884 and 1885, European
David Livingstone Oswell and Anna Mary married and had children. His one regret in later life was that he did not spend enough time with his children. The archives of David Livingstone are maintained by the Archives of the University of Glasgow (GUAS). On 11 November 2011, Livingstone's 1871 Field Diary, as well as other original works, was published online for the first time by the David Livingstone Spectral Imaging Project. Papers relating to Livingstone's time as a London Missionary Society missionary (including hand-annotated maps of South East Africa) are held by the Archives of the School of Oriental and African Studies.