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48 BCE
After arriving in Egypt,
Julius Caesar declares that the source of the Nile is the worlcTs greatest unsolved mystery
66
Roman Emperor Nero despatches two military officers to find the source of the Nile, but they find their route upriver blocked by the immense swamp of the Sudd
Spanish Jesuit missionary Pedro Paez becomes the first European to lay eyes on the source of the Blue Nile
British explorer John Hanning Speke reaches the south shore of Lakę Victoria and guesses that it is the source of the White Nile; his guess is confirmed in 1860
An expedition led by South African Hendri Coetzee is the first to navigate the entire length of the river from the source of the White Nile to the Mediterranean—the journey takes four months and two weeks