section_path: History/Apartheid era
section_name: Apartheid era
paragraph_text: Apartheid era
  
  In 1948, the National Party was elected to power. It strengthened the racial segregation begun under Dutch and British colonial rule. Taking Canada's Indian Act as a framework, the nationalist government classified all peoples into three races (Whites, Blacks, Indians and Coloured people (people of mixed race)) and developed rights and limitations for each. The white minority (less than 20%) controlled the vastly larger black majority. The legally institutionalised segregation became known as apartheid. While whites enjoyed the highest standard of living in all of Africa, comparable to First World Western nations, the black majority remained disadvantaged by almost every standard, including income, education, housing, and life expectancy. The Freedom Charter, adopted in 1955 by the Congress Alliance, demanded a non-racial society and an end to discrimination.
  
  On 31 May 1961, the country became a republic following a referendum (only open to white voters) which narrowly passed; the British-dominated Natal province largely voted against the proposal. Elizabeth II lost the title Queen of South Africa, and the last Governor-General, Charles Robberts Swart, became state president. As a concession to the Westminster system, the appointment of the president remained an appointment by parliament and was virtually powerless until P. W. Botha 's Constitution Act of 1983, which eliminated the office of prime minister and instated a unique "strong presidency" responsible to parliament. Pressured by other Commonwealth of Nations countries, South Africa withdrew from the organisation in 1961 and rejoined it in 1994.
  
  Despite opposition to apartheid both within and outside the country, the government legislated for a continuation of apartheid. The security forces cracked down on internal dissent, and violence became widespread, with anti-apartheid organisations such as the African National Congress (ANC), the Azanian People's Organisation, and the Pan-Africanist Congress carrying out guerrilla warfare and urban sabotage. The three rival resistance movements also engaged in occasional inter-factional clashes as they jockeyed for domestic influence. Apartheid became increasingly controversial, and several countries began to boycott business with the South African government because of its racial policies. These measures were later extended to international sanctions and the divestment of holdings by foreign investors.