Madi people sources of the river Nile". He also hoped to meet the East African expedition led by John Hanning Speke and James Augustus Grant, somewhere about the Victoria Lake. Baker spent a year on the Sudan-Abyssinian border, during which time he learned Arabic, explored the Atbara river and other Nile tributaries. In early 1862 he arrived at Khartoum, and in December the same year, he left the city to follow the course of the White Nile. Months later in arrived in Gondokoro. In 1862, Speke and Grants who Mr. Baker planned to meet Mr Baker in Gondokoro, arrived in the Madi
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