Sir Henry Morton Stanley GCB was a Welsh-American journalist, explorer, soldier, colonial administrator, author and politician who was famous for his exploration of central Africa and his search for missionary and explorer David Livingstone, whom he later claimed to have greeted with the now-famous line: "Dr Livingstone, I presume?". He is mainly known for his search for the source of the Nile, work he undertook as an agent of King Leopold II of Belgium, which enabled the occupation of the Congo Basin region, and for his command of the Emin Pasha Relief Expedition. He was knighted in 1897.