 Complete the following phrase:  Soweto became the largest Black city in South Africa, but until 1976, its population could have status only as temporary residents, serving as a workforce for Johannesburg. It experienced civil unrest during the Apartheid regime. There were serious riots in 1976, sparked by a ruling that Afrikaans be used in African schools there; the riots were violently suppressed, with 176 striking students killed and more than 1,000 injured. Reforms followed, but riots flared up again in 1985 and continued until the first non-racial elections were held in April 1994. In 2010, South Africas oldest township hosted the 