African National Congress
Founded on 8 January 1912 by John Langalibalele Dube in Bloemfontein as the South African Native National Congress (SANNC), its primary mission was to give voting rights to black and mixed-race Africans and, from the 1940s, to end apartheid. The ANC originally attempted to use nonviolent protests to end apartheid, however, the Sharpeville massacre resulted in the deaths of 69 black Africans and contributed to deteriorating relations with the South African government. On 8 April 1960, the administration of Charles Robberts Swart, banned the ANC and forced the party to leave South Africa. After the ban, the ANC formed the Umkhonto we Sizwe (Spear of the Nation) to fight against apartheid utilizing guerrilla warfare and sabotage. On 3 February 1990, State President F. W. de Klerk lifted the ban on the ANC and released Nelson Mandela on 11 February 1990. On 17 March 1992, the apartheid referendum was passed by the voters removing apartheid and allowing the ANC to run in the 1994 election. Since the 1994 election the ANC has performed better than 60% in all general elections, including the most recent 2014 election.
Oliver Tambo
Tambo, Mandela and Walter Sisulu were the founding members of the ANC Youth League in 1943, with Tambo becoming its first National Secretary and a member of the National Executive in 1948. The Youth League proposed a change in the tactics of the anti-apartheid movement. Previously, the ANC had sought to further its cause by actions such as petitions and demonstrations; the Youth League felt these actions were insufficient to achieve the group's goals and proposed their own 'Programme of Action'. This programme advocated tactics such as boycotts, civil disobedience, strikes, and non-collaboration.
In 1955, Tambo became Secretary General of the ANC after Sisulu was banned by the South African government under the Suppression of Communism Act. In 1958, he became Deputy President of the ANC and in 1959 was served with a five-year banning order by the government.