Muhammad Ali
Biography
Muhammad Ali was a boxer, activist, and entertainer born Cassius Marcellus Clay Jr. in Louisville, Kentucky. He won gold at the 1960 Summer Olympics and became world heavyweight champion at 22, defeating Sonny Liston in 1964. Ali refused military service due to his conscientious objections to the Vietnam War, leading to a high-profile court battle that ultimately overturned his conviction in 1971.