Livingstone’s fame as an explorer and his obsession with learning the sources of the Nile River was founded on the belief that if he could solve that age-old mystery, his fame would give him the influence to end the East African Arab-Swahili slave trade. “The Nile sources,” he told a friend, “are valuable only as a means of opening my mouth with power among men. It is this power [with] which I hope to remedy an immense evil. ” :289 His subsequent exploration of the central African watershed was the culmination of the classic period of European geographical discovery and colonial penetration of Africa. At the same time, his missionary travels, “disappearance”, and eventual death in Africa—and subsequent glorification as a posthumous national hero in 1874—led to the founding of several major central African Christian missionary initiatives carried forward in the era of the European “Scramble for Africa”.