Muhammad Ali (Cassius Clay) is a former 3-time Heavyweight Champion of the World and an Olympic gold medal winner. He boxed as a kid, and dropped out of high school to pursue boxing.
A link is provided to a good biographical article posted by our friends at Wikipedia, where knowledge is free.
If you have the better answer, then send it to us. We will display your answer after the approval.
Rules to Post Answers in OneStopFAQs.com:-
There should not be any Spelling Mistakes.
There should not be any Gramatical Errors.
Answers must not contain any bad words.
Answers should not be the repeat of same answer, already approved.
Answer should be complete in itself.