Muhammad Ali was the greatest boxer of all time. He was the greatest athlete-advocate of all time, too—a relentlessly outspoken figure in the battle for peace and racial justice. He was, simply stated, the most significant sports figure of the 20th century. And he never backed down from a fight. To commemorate the 60th anniversary of his first heavyweight title—a shocking upset of the great Sonny Liston on Feb. 25, 1964—we remember the bouts, in and out of the ring, of a person who defined what it means to be the Greatest of All Time

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