the ANC, which began a campaign of sabotage. During this period, music was often referred to as a "weapon of struggle." Among MK members in training camps, a song called "Sobashiy'abazali" ("We Will Leave Our Parents") became very popular, invoking as it did the pain of leaving their homes. The Toyi-toyi chant also became popular during this period, and was frequently used to generate a sense of power among large groups to intimidate government troops. 1970s: ANC cultural groups and Soweto uprising In the early 1970s, the ANC held to the belief that its primary activity was political organising, and that any cultural activity was secondary to this. This belief began to shift with the establishment of the Mayibuye Cultural Ensemble in 1975, and the Amandla Cultural Ensemble later in the 1970s. Mayibuye was established as a growing number of ANC activists argued that cultural events needed to form a part of their work, and could be used to raise awareness of apartheid, gather support, and drive political change. The group was established by ANC activists Barry Feinberg and Ronnie Kasrils, who named it after the slogan Mayibuye iAfrika (Let Africa Return). The group consisted of several South African performers, and used a mixture of songs, poetry, and narrative in their performance, which described life under the apartheid government and their struggle against it. The songs were often performed in three- or four-part harmony. The group performed more than 200 times across Europe, and were seen as the cultural arm of the ANC. The group experienced personal and organisational difficulties, and disbanded in 1980. In 1976 the government of South Africa decided to implement the use of Afrikaans as the medium of instruction in all schools instead of English. In response, high school students began a series of protests that came to be known as the Soweto Uprising. 15,000–20,000 students took part; the police, caught unprepared, opened fire on the protesting children. 700 people were estimated to have been killed, and over a thousand injured. The killings sparked off several months of rioting in the Soweto townships, and the protests became an important moment for the anti-Apartheid movement. Hugh Masekela wrote Soweto Blues in response to the massacre, and the song was performed by Miriam Makeba, becoming a standard part of Makeba's live performances for many years. "Soweto Blues" was one of many melancholic songs composed by Masekela during this