(1853-1902) British statesman who was instrumental in assuring British dominance of southern Africa. He founded the De Beers Mining Company, eventually controlling 90% of the world’s diamond production. After becoming prime minister of the Cape Colony (now South Africa) in 1890, he used his influence to strengthen British control over the region. His master plan was to establish a Cape to Cairo railroad line that would link British colonial interests in Africa between Egypt and the Cape Colony in southern Africa. The Boers, however, provided heavy and eventually armed resistance to this proposal. After authorizing an aggressive invasion of the Boer Republic of Transvall which ended poorly, Rhodes was removed from office. However, the seeds of the Boer War had been sown.