Muhammad Ali wears a gold medal among other US boxers at the Olympic village in Rome, September 6, 1960.
Muhammad Ali in March 1964.
Ali behind the wheel, April 2, 1963.
Ali is pictured here with Malcolm X in New York City, March 1, 1964.
A referee holds back Muhammad Ali after he knocked out challenger Sonny Liston in the first round of their title fight in Lewiston, Maine, May 25, 1965
Here's another from that historic fight.
Ali is pictured here in a match-up with Joe Frazier in Manila, Philippines, October 1, 1975.
A fighter and a family man: Muhammad Ali cuddles up to his seven-year-old daughter Maryum Ali, August 15, 1975.
Family dynasty: Ali's daughter, Laila, also became a champion boxer. She retired undefeated.
President George W. Bush presents the Presidential Medal of Freedom to Ali, Wednesday, Nov. 9, 2005.
