African National Congress (ANC) Youth League emerged in the early 1940s, the ANC itself came to life under a vigorous president, Albert Luthuli, and three younger men—Walter Sisulu, Oliver Tambo, and Nelson Mandela. The South African Indian Congress, which had also been revitalized, helped the ANC organize a defiance campaign in 1952, during which thousands of volunteers defied discriminatory laws by passively courting arrest and burning their pass books. A mass meeting held three years later, called Congress of the People, included Indians, Coloreds, and sympathetic whites. To prevent further gatherings, the government passed the Prohibition of Political Interference Act (1968), which banned the formation and foreign financing of nonracial political parties. A fresh anti-pass campaign was launched in March 1960, and thousands of unarmed blacks invited arrest by presenting themselves at police stations without passes. At Sharpeville, a black township near Johannesburg, the police opened fire on the crowd outside a police station, killing at least 67 black protestors. Thousands of workers then went on strike, and in Cape Town some 30,000 blacks marched in a peaceful protest to the centre of the city. The government re-established control by force by mobilizing the army, outlawing the ANC and arresting more than 11,000 people under emergency regulations. After Sharpeville, it became clear that apartheid could never be overcome by peaceful means alone. PAC (The Pan-Africanist Congress) established an armed wing called Poqo, and the ANC set up its military wing, Umkhonto we Sizwe (“Spear of the Nation”), in 1961. These movements were supressed harshly by the goverment. A new phase of resistance began in 1973 when black trade unions organized a series of strikes for higher wages and improved working conditions. Stephen Biko and other black students founded the Black People’s Convention (BPC) in 1972 and inaugurated what was loosely termed the Black Consciousness movement, which appealed to blacks to take pride in their own culture and proved immensely attractive. Biko and some 500 people were killed in 1976 while protesting the regime. Starting from 1986 some international sanctions against the South African apartheid regime were established. Struggles between the regime and ANC were intensified until 1990. In 1990 Nelson Mandela released from many years of imprisonment. During the next year Parliament repealed the basic apartheid laws, lifted the state of emergency, freed many political prisoners, and allowed exiles to return to South Africa.