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 Stanley Evans position he held until his retirement in 1986. He received the Gill Medal of the Astronomical Society of South Africa in 1988. He wrote eight books including an introduction to astronomy. Evans died in Austin on 14 November 2004. At the time of his death, he had completed a book with Karen Winget on the eclipse expedition to Mauritania. David Stanley Evans David Stanley Evans (28 January 1916 – 14 November 2004) was a British astronomer, noted for his use of lunar occultations to measure stellar angular diameters during the 1950s. Evans was born in Cardiff, Wales on 28 January