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After the National Party gained power in South Africa in 1948, its all-white government immediately began enforcing existing policies of racial segregation under a system of legislation that it called apartheid.he Great Depression and World War II brought increasing economic woes to South Africa, and convinced the government to strengthen its policies of racial segregation. In 1948, the Afrikaner National Party won the general election under the slogan âapartheidâ (literally âseparatenessâ).
That same year, in a sign of growing world opposition to state-enforced racial discrimination, the United Nations (UN) declared apartheid a crime against humanity, a motion that took on real meaning four years later, in 1977, when the UN adopted a mandatory embargo on arms sales to South Africa.