Dutch traders landed at the southern tip of modern day South Africa in 1652 and established a stopover point on the spice route between the Netherlands and the Far East, founding the city of Cape Town. After the British seized the Cape of Good Hope area in 1806, many of the Dutch settlers (the Boers) trekked north to found their own republics. The discovery of diamonds (1867) and gold (1886) spurred wealth and immigration and intensified the subjugation of the native inhabitants. The Boers resisted British encroachments but were defeated in the Second Anglo Boer War (1899-1902); however, the British and the Afrikaners, as the Boers became known, ruled together beginning in 1910 under the Union of South Africa, which became a republic in 1961 after a whites-only referendum. In 1948, the National Party was voted into power and instituted a policy of apartheid - the separate development of the races - which favored the white minority at the expense of the black majority. The African National Congress (ANC) led the opposition to apartheid and many top ANC leaders, such as Nelson MANDELA, spent decades in South Africa's prisons. Internal protests and insurgency, as well as boycotts by some Western nations and institutions, led to the regime's eventual willingness to negotiate a peaceful transition to majority rule.