Muhammad Ali was an American Professional Boxer, generally considered the greatest heavyweight in the history of the sport. Early in his career, Ali was known for being an inspiring, controversial and polarizing figure both inside and outside the boxing ring. He was one of the most recognized sports figures of past 100 years, crowned as "Sportsman of the Century" and "Sports Personality of the Century".
He also wrote several best – selling books about his career, including The Greatest: My Own Story and The Soul of a Butterfly.
Ali, originally known as Cassius Clay, began his training at 12 years of age. In 1964, at the age of 22, he won the world Heavyweight Championship against Sonny Liston.
In 1975 Ali embraces Islam and adhering to Sufism.
In 1967, three years after winning the heavyweight title, Ali refused to be inducted into the U.S. military, citing his religious beliefs opposes American involvement in The Vietnam War. He was eventually arrested and found guilty on draft evasion charges and stripped off his Boxing title, which eventually leads him not to fight for nearly four years. During this time of inactivity, the Vietnam War began to grow and Ali’s Stance gained sympathies, he spoke at colleges across the U.S, criticizing the War and advocating African American pride and radical justice.
Muhammad Ali's appeal worked its way up to the U.S. Supreme Court where, in 1971, his conviction was overturned. Ali's actions as a rigorous objector to the war made him an icon for the larger counterculture generation.
Muhammad Ali remained the three-time lineal world heavyweight champion; he won the title in 1964, 1974, and 1978. Nicknamed "The Greatest", Ali was involved in several historic boxing matches. Ali defeated every top heavyweight in his era, which has been called the golden age of heavyweight boxing.
Ali was diagnosed with Parkinson's syndrome in 1984, a disease that commonly results from head trauma from activities such as boxing.
This great soul departed on 3rd June 2016, in Scottsdale, Arizona, United States.