Just in case you are curious about Muhammad Ali's real name, Ali's name is Cassius Marcellus Clay, Jr. It has to be mentioned that Ali was named after his father, Cassius Marcellus Clay, Sr., who was named after the 19th century abolitionist and politician of the same name.
Ali changed his name after joining the Nation of Islam in 1964, subsequently converting to Sunni Islam in 1975.
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