Multiracial nationalist organization formed in South Africa 1912 to extend the franchise to the whole population and end all racial discrimination there. Its president is Oliver Tambo and vice president from 1990 Nelson Mandela. Although originally nonviolent, the ANC was banned by the government from 1960 to Jan 1990, and in exile in Mozambique developed a military wing, Umkhonto we Sizwe, which engaged in sabotage and guerrilla training. The armed struggle was suspended Aug 1990 when the organization's headquarters were moved to Johannesburg. The ANC is supported by the Organization of African Unity as a movement aimed at introducing majority rule in South Africa. Former ANC leaders include Albert Luthuli and Solomon Plaatje. Several imprisoned leaders were released Oct 1989; Mandela in Feb 1990.