European exploration of Africa and Lake Victoria. It was eventually proved to be the latter from which the Nile flowed. Henry Morton Stanley, who had in 1871 succeeded in finding and succouring Livingstone (originating the famous line "Dr. Livingstone, I presume"), started again for Zanzibar in 1874. In one of the most memorable of all exploring expeditions in Africa, Stanley circumnavigated Victoria Nyanza (Lake Victoria) and Lake Tanganyika. Striking farther inland to the Lualaba, he followed that river down to the Atlantic Ocean—which he reached in August 1877—and proved it to be the Congo. In 1895, the British South Africa Company hired the American
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