Sir Henry Morton Stanley, GCB, born John Rowlands (28 January 1841 - 10 May 1904), was a Welsh journalist and explorer famous for his exploration of Africa and his search for David Livingstone. Upon finding Livingstone, Stanley allegedly uttered the now-famous greeting, "Dr. Livingstone, I presume?" David Livingstone (19 March 1813 - 1 May 1873) was a Scottish Congregationalist pioneer medical missionary with the London Missionary Society and an explorer in Africa. His fame as an explorer helped drive forward the obsession with discovering the sources of the River Nile that formed the culmination of the classic period of European geographical discovery and colonial penetration of the African continent. At the same time his missionary travels, "disappearance" and death in Africa, and subsequent glorification as 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."