A glance at the history of South Africa's governing African National Congress political party:

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-1912: Founding of South African Native National Congress, precursor to the ANC.

-1923: Name changed to African National Congress.

-1955: The Congress Alliance - of the ANC and Indian, mixed-race and white organizations - holds the Congress of the People in Soweto. Congress adopts the Freedom Charter calling for a nonracial democracy and a socialist-based economy.

-1956: Nelson Mandela and 155 other South Africans of all races who had supported the Freedom Charter charged with treason. All acquitted after a four-year trial.

-1959: Robert Sobukwe leads breakaway faction from the ANC, forming Pan Africanist Congress, now a minor political player in South Africa.

-1960: ANC banned.

-1961: Founding of ANC's guerrilla wing, Umkhonto we Sizwe, or Spear of the Nation.

-1964: Mandela found guilty of sabotage at Rivonia Trial and sentenced to life imprisonment.

-1990: ANC and other groups unbanned; Mandela released.

-1991: Mandela elected president of ANC. The government, ANC and 17 other political groups begin formal negotiations on a new constitution.

-1993: Draft constitution adopted.

-1994: ANC wins first all-race elections; Mandela becomes president; ANC's armed wing absorbed into national defense forces.

-1999: Thabo Mbeki succeeds Mandela as the country's president.

-2007: ANC elects Jacob Zuma as party president over Mbeki, putting Zuma in line to run for the presidency.

-2009: ANC sweeps parliamentary elections and Zuma becomes president.

-2011: ANC fires Youth League leader Julius Malema and suspends him from the party for five years.

-2012: ANC marks its 100th anniversary, holds party convention to pick its next leader.