Paul Robeson is one of the coolest dudes ever. Great singer, a lawyer, a leading expert in linguistics, especially African linguistics, spoke more than 20 languages, sang in 50, great orator, early civil rights leader. He was unfortunately blacklisted during the Second Red Scare for a decade, with his passport revoked, because the US government decided free speech didn't apply to Marxists, as most civil rights leaders were back in the day. He became involved in struggles not just for rights for black people in America but also for African independence and workers rights in Europe (and the US) such as miners in Wales.