Muhammad Ali (Cassius Marcellus Clay Jr.)
American professional boxer, 1942-2016
"Ali was a leading heavyweight boxer of the 20th century, and he has been ranked the greatest heavyweight boxer of all time. He was involved in several historic boxing matches and feuds, most notably his fights with Joe Frazier, such as the ""Thrilla in Manila"", and his fight with George Foreman known as ""The Rumble in the Jungle"". He converted to Islam and became a Muslim after 1961, and eventually took the name Muhammad Ali. In 1966, he refused to be drafted into the military, citing his religious beliefs and opposition to the Vietnam War. Ali was a high-profile figure of racial pride for African Americans during the civil rights movement."
Source: Wikipedia