Young Muhammad Ali (left) then known as Cassius Clay, knocked
out opponent Sonny Liston for his first world title in boxing on
this day in history, Feb. 25, 1964.
Twenty-two-year-old Clay achieved the unthinkable by dethroning
Liston, who was then the world heavyweight boxing champion. (History.com.)
Muhammad Ali (Cassius Marcellus Clay Jr.)
(January 17, 1942 – June 3, 2016)