Muhammad Ali (1942-2016) was an American former professional boxer, generally considered among the greatest heavyweights in the history of the sport. A controversial and polarizing figure during his early career, Ali is now highly regarded for the skills he displayed in the ring plus the values he exemplified outside of it: religious freedom, racial justice and the triumph of principle over expedience. Ali remains the only three-time lineal world heavyweight champion, having won the title in 1964, 1974, and 1978.Photograph: Ira Rosenberg; restoration: Chris Woodrich
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