By A Mystery Man Writer
When Ali was drafted for Vietnam, many questioned whether he would accept the induction.
Muhammad Ali Risked It All When He Opposed The Vietnam War
On this day in history, April 28, 1967, Muhammad Ali refuses to serve military at height of Vietnam War
Muhammad Ali Refuses Induction, Opposing Vietnam War - April 28, 1967
Boxing world, and the world at large, react to Muhammad Ali's passing - Los Angeles Times
Round Two: What's My Name? (1964-1970)
Muhammad Ali Dies at 74: Titan of Boxing and the 20th Century - The New York Times
Muhammad Ali Special, Part 2: With Sugar Ray Leonard and Bob Arum - The Ringer
Muhammad Ali, who riveted the world as 'The Greatest,' dies, News
Muhammad Ali, Draft Resister & The Greatest, Dies at 74 - Vietnam Full Disclosure
Watch Muhammad Ali Refuses the Vietnam War Draft, Muhammad Ali
Muhammad Ali Was America's Most Effective Anti-War Advocate (And Still Is)
Muhammad Ali Dead: Legendary Boxer Was 74
On this day in history, April 28, 1967, Muhammad Ali refuses to serve military at height of Vietnam War