White Nile Lake Kyoga to Lake Albert), the "Albert Nile" (to the South Sudan border) and then the "Mountain Nile" or "Bahr-al-Jabal" (down to Lake No). "White Nile" may sometimes include the headwaters of Lake Victoria, the most remote of which being from the Blue Nile. The 19th-century search by Europeans for the source of the Nile was mainly focused on the White Nile, which disappeared into the depths of what was then known as "Darkest Africa". The White Nile's true source was not discovered until 1937, when the German explorer Burkhart Waldecker traced it to a stream in Rutovu, at the
Sidi Mubarak Bombay slave in India many years and learned Hindi. He was emancipated after his owner died, and returned to Africa. In Africa, Bombay met John Hanning Speke, who asked him to join his expedition to find the source of the Nile River. Bombay and Speke communicated with each other in Hindi, as it was the only language both of them understood. Bombay was well regarded by the British explorers; in the words of Burton, "The gem of the party, however, is one Sidi Mubarak, who has taken to himself the agnomen of 'Bombay.'" Between 1856 and 1876, Bombay participated in expeditions