Born in 1942, as Cassius Clay, raised in Louisville, Kentucky

Ali began training as an amateur boxer at the age of 12

Within six years, Ali won gold medal at the Olympic Games in Rome 1960

Later that year, Ali became professional boxer and won all the heavyweight boxing titles

At the age of 22, Cassius Clay Jr. became Muhammad Ali after converting to Islam and changing his name

In 1964, Ali won against the All Time heavyweight champion Sonny Liston, where Ali was considered as an underdog

In 1967, Ali refused to report for Vietnam War, citing his religious beliefs for which he was found guilty and stripped of his boxing title and banned for 3 years

In 1971, Ali and Joe Frazier fought in what is known as the ‘Fight of the Century’, Frazier won in 15 rounds unanimous decision

In 1974, Ali came back strong in the second re-match against Joe Frazier and won the bout in 12 Round

Ali was also known for being a humanitarian and philanthropist

Ali estimatedly helped to feed more than 22 million people affected by hunger across the world

Ali was also keen and focused on youth education, He spoke at several historically black colleges and universities about the importance of education

In 1990, Ali helped negotiate the release of 15 American hostages from Iraq

In 1994, Ali campaigned to the US government to come to the aid of refugees afflicted by the Rwandan genocide, and to donate to organizations helping Rwandan refugees

In 1998 he became a United Nations Messenger of Peace for his work overseas, and was awarded the Presidential Medal of Freedom in 2005