10 November 1871: 'Dr Livingstone, I presume?'

On 10 November 1871, by the most common account, the journalist Henry Morton Stanley found the Scottish explorer David Livingstone at Ujiji, on Lake Tanganyika, after Livingstone had not been heard from for years. Stanley's greeting, 'Dr Livingstone, I presume?', became one of the most famous lines in the history of exploration.