South African anti-apartheid activist (1946–1977)
Source (Wikipedia): Steve Biko

Bantu Stephen Biko OMSG was a South African anti-apartheid activist. Ideologically an African nationalist and African socialist, he was at the forefront of a grassroots anti-apartheid campaign known as the Black Consciousness Movement during the late 1960s and 1970s. His ideas were articulated in a series of articles published under the pseudonym Frank Talk.