United States prizefighter who won the world heavyweight championship three times (born in 1942)
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the fourth caliph of Islam who is considered to be the first caliph by Shiites; he was a cousin and son-in-law of Muhammad; after his assassination Islam was divided into Shiite and Sunnite sects
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ALI KHAMENEI, 48, Iran's conservative two-term president who heads the Supreme Defense Council.