In 1964, the young Alidefeated Nissan Liston and became the new boxing champion with superb boxing skills and tenacity. During the Vietnam War, Ali refused to perform military service because "the Viet Cong did not call me a nigger." Because of Ali's straightforward character, he refused to give in to what he thought was wrong, and Ali suffered from it: the US government tried every means to throw Ali into prison; the boxing council deprived Ali of the gold belt of the boxing champion, and so on.
In the 10 years of social turmoil from 1964 to 1974, Ali’s perseverance and unyielding independence have had a huge impact not only on him, but also on the boxing industry and even the entire society, and Ali is also because of this. Become the spiritual leader of the black movement and the anti-Vietnam war movement. Finally, in 1974, with extraordinary perseverance, Ali, at the age of 34, once again challenged the boxing champion
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