Muhammad Ali

Cassius Marcellus Clay Jr. was born in Louisville, Kentucky, on January 17, 1942, the son of Cassius Clay Sr., a sign and billboard painter, and Odessa Grady Clay, a domestic worker. He came to boxing at twelve, after a police officer and boxing coach, Joe E. Martin, met the boy fuming over a stolen bicycle and steered his anger toward the ring. The gift was immediate. As an amateur he gathered six Kentucky Golden Gloves titles, two national Golden Gloves crowns, and two national Amateur Athletic Union championships, and in 1960, still only eighteen, he won the Olympic light-heavyweight gold medal in Rome.

Turning professional that same year, he stunned the boxing world in February 1964 by defeating the fearsome Sonny Liston to claim the heavyweight championship at twenty-two. Soon after, he embraced the Nation of Islam and took the name Muhammad Ali, declaring that he would no longer answer to what he called his "slave name." He would hold or reclaim the heavyweight crown three times across a career of storied bouts, among them the "Rumble in the Jungle" against George Foreman in 1974 and the punishing trilogy with Joe Frazier.

In April 1967 Ali refused induction into the United States Army, standing as a conscientious objector against the Vietnam War on grounds of faith and conscience. He was stripped of his title, barred from boxing for more than three years, and convicted of draft evasion — a conviction the Supreme Court unanimously overturned in 1971. His sacrifice of his prime fighting years made him a global symbol of principled resistance.

In later life Ali bore Parkinson's syndrome with grace, becoming an ambassador of peace and reconciliation across the world until his death in Scottsdale, Arizona, on June 3, 2016. He remains "the Greatest" — not for his fists alone, but for the courage with which he stood by his convictions.