Muhammad Ali (1942-2016) was a three-time lineal heavyweight boxing champion known for his activism and refusal to join the Vietnam War draft, which led to his conviction being overturned by the Supreme Court. He combined his boxing career with a strong commitment to civil rights, advocating for racial equality and opposing war, while inspiring many figures in sports and activism. Despite personal controversies and failures, Ali's legacy emphasizes courage, artistic expression, and moral consistency.