What happened March 1967 AD

In March 1966, Ali refused to be inducted into the armed forces. He was systematically denied a boxing license in every state and stripped of his passport. As a result, he did not fight from March 1967 to October 1970—from ages 25 to almost 29—as his case worked its way through the appeals process before his conviction was overturned in 1971.

Hoffa began serving his aggregate prison sentence of 13 years (eight years for bribery, five years for fraud) in March 1967 at the Lewisburg Federal Penitentiary in Pennsylvania.