Paul Robeson, 1925
From Wikipedia: Paul Leroy Robeson was an American bass singer and actor who became involved with the Civil Rights Movement. At Rutgers College, he was an American football player, and then had an international career in singing, as well as acting in theater and movies. He became politically involved in response to the Spanish Civil War, fascism, and social injustices. His advocacy of anti-imperialism, affiliation with communism, and criticism of the United States government caused him to be blacklisted during the McCarthy era.