The Amandla Festival of Unity was a world music festival held at Harvard Stadium in Boston, Massachusetts, on July 21, 1979. The festival was held in an effort to support and celebrate the liberation of South Africa and the on-going efforts of people in Boston to address racism in their families, schools, workplaces and communities. Performers include soul legend Patti LaBelle, jazz pianist Eddie Palmieri, drummer Babatunde Olatunji, the South African band Jabula and comedian Dick Gregory, who gives a 15-minute racially-charged speech before Marley’s performance.

• Bob Marley