On April 28, 1967, Ali appeared in Houston for his scheduled induction into the U.S. Armed Forces, but he refused three times to step forward when his name was called.
On June 28, 1971, the Supreme Court of the United States in Clay v. United States overturned Ali's conviction by a unanimous 8-0 decision (Justice Thurgood Marshall recused himself, as he had been the U.S. Solicitor General at the time of Ali's conviction) [REF].