Create a timeline of the life of Muhammad Ali.
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1942: Born in Louisville, Kentucky.
1960: Won his first professional fight.
1964: Won the world heavyweight title.
1966: Refused to be drafted into the military, citing religious grounds.
1974: Defeated George Foreman in the "Rumble in the Jungle".
1978: Lost the world heavyweight title to Leon Spinks.
1979: Retired from boxing.
1996: Lit the Olympic Torch in Atlanta.
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