3 times, '64, '74, '78.
Ali won the Gold medal at the Rome Olympics in 1960.
after losing it the first time he won it twice more. in 1974 beating george foreman and again in his rematch with leon spinks in 1978.
ali won his first world title in 1964 http://www.boxrec.com/list_bouts.php?human_id=180&cat=boxer
Irish Jerry Quarry. Ali won in the third round on a cut eye stoppage.
Muhammad Ali, then know as Cassius Clay, won an Olympic gold medal in Heavyweight Boxing at the 1960 Rome Olympics. He was representing the United States.
Ali won 56 out of 61 Professional bouts.
ingemar johannson, crossing over from 1959 Floyd Patterson, who regained the title from ingo in 1960 Charles "sonny" liston, who twice knocked out Floyd in the first round (in '62 & '63). Cassius clay/Muhammad ali, from '64 till '67 when he was stripped for failure to submit to the draft. the title fractured from '65 to '67 when ernie terrell held the wba version of the title, till he met ali in a unification. after ali was stripped the title fractured again....jimmy Ellis won the wba title, and joe frazier won the wbc belt. they met to unify the title in 1970, when frazier won in the fifth, then joe beat a comebacking ali in '71 to cement his claim.
Ali won the Heavyweight Title on 3 different times Ali first won the Heavyweight Title when he stopped Sonny Liston on February 25, 1964. Ali won the Heavyweight Title the 2nd time when he stopped George Foreman on October 30, 1974. Ali won the Heavyweight Title a 3rd time when he beat Leon Spinks in their rematch on September 15, 1978.
Muhammad ali won the linear heavyweight title three times, and apart from that, evander holyfield won it 4 times, and lennox Lewis three times.
they fought three times they met twice in 1973, norton won the first, ali won the second, then they met again in 1976 for Ali's world title, and ali won a controversion decison.
He never held the Light Heavyweight Title. He was a 3 time Heavyweight champion. He won his first title against Sonny Liston.