Muhammad Ali was an American professional boxer and activist

He was born on January 17, 1942 in Louisville, Kentucky

His real name was Cassius Marcellus Clay Jr.

He was Nicknamed as "The Greatest"

He began training as an amateur boxer at age 12

He is regarded as one of the most significant sports figure

He was ranked as the greatest heavyweight boxer of all time

He was named Sportsman of the Century by Sports Illustrated

He was named Sports Personality of the Century by the BBC

Net Worth $80 Million