European exploration of Africa 1840s, so that around the midpoint of the 19th century and the beginning of the colonial Scramble for Africa, the unexplored parts were now limited to what would turn out to be the Congo Basin and the African Great Lakes. This "Heart of Africa" remained one of the last remaining "blank spots" on world maps of the later 19th century (alongside the Arctic, Antarctic and the interior of the Amazon basin). It was left for 19th-century European explorers, including those searching for the famed sources of the Nile, notably John Hanning Speke, Sir Richard Burton, David Livingstone and Henry Morton
Henry Morton Stanley singled out for his supposed excesses in Africa, while other European explorers, often responsible for far more loss of life than Stanley, receive sympathetic treatment." For example, Pierre Savorgnan de Brazza, who was revered in France, had shot Africans in self-defence but, unlike Stanley, never spoke of it. Samuel Baker killed far more Africans than Stanley did and, in 1873, was mauled in the press for "cold blooded murder". David Livingstone shot dead several African Yao slave traders in 1861, when they attacked the mission at Magomero. In "Through the Dark Continent", Stanley wrote that "the savage only respects force,