January 17, 1942 – June 3, 2016) was an American Olympic and professional boxer and activist.He is widely regarded as one of the most significant and celebrated sports figures of the 20th century.From early in his career, Ali was known as an inspiring, controversial, and polarizing figure both inside and outside the ring.
At 18, he won a gold medal in the light heavyweight division at the 1960 Summer Olympics in Rome, and converted to Islam shortly afterwards.
At age 22 in 1964, he won the WBA and WBC heavyweight titles from Sonny Liston in an upset. military, citing his religious beliefs and opposition to American involvement in the Vietnam War. Supreme Court, which overturned his conviction in 1971, by which time he had not fought for nearly four years—losing a period of peak performance as an athlete.
Clay then changed his legal name from Cassius Clay, which he called his "slave name", to Muhammad Ali, and gave a message of racial pride for African Americans and resistance to white domination during the 1960s Civil Rights Movement. He was eventually arrested, found guilty of draft evasion charges and stripped of his boxing titles. Ali's actions as a conscientious objector to the war made him an icon for the larger counterculture generation.
In 1966, two years after winning the heavyweight title, Ali further antagonized the white establishment in the U. Ali is regarded as one of the leading heavyweight boxers of the 20th century.
He remains the only three-time lineal heavyweight champion; he won the title in 1964, 1974, and 1978.
Between February 25, 1964, and September 19, 1964, Ali reigned as the undisputed heavyweight champion.He is the only boxer to be named The Ring magazine Fighter of the Year six times.He was ranked as the greatest athlete of the 20th century by Sports Illustrated and the Sports Personality of the Century by the BBC.ESPN Sports Century ranked him the 3rd greatest athlete of the 20th century.Nicknamed "The Greatest", he was involved in several historic boxing matches.Notable among these were the first Liston fight; the "Fight of the Century", "Super Fight II" and the "Thrilla in Manila" versus his rival Joe Frazier; and "The Rumble in the Jungle" versus George Foreman.