He was born in Louisvlle, Kentucky and was named after his father, Cassius Marcellus Clay,
After winning his first three fights, he won to Zbigniew Pietrzkowski and he got the gold medal in Olympics Games of Rome
He won a six-round decision over Tunney Hunsaker
Clay won a disputed 10 round desicion over Doug Jones of the named "The Fight of the Year"
Cassus Clay joined tha Nation of Islam and changed his named because says it was a slave name
He refused to fight in the war because his religius prevented him for do it and he was arrested by this. He only returned to the box until 1971.
Despite the symptoms of the Parkison's disease this fight that should never have been done, it was the last in Alí's career.
On June 3th, 2016 at the age of 74 years old Alí died from septic shock at Scottsdale Arizona hospital, and it was the end of whose could "float like a butterfly, sting like a bee"