Thousands are expected to gather in Louisville Friday for the funeral of Muhammad Ali, one of the world’s most iconic figures of the 20th century. Ali was considered the greatest boxer of all time, but he will also be remembered for his activism, including his role in the Black Power movement and his opposition to the Vietnam War. After he refused military induction in 1967, his title was taken away from him, and he was sentenced to a five-year prison term. He appealed all the way to the Supreme Court, and in 1971 his conviction was finally reversed. He did not go to prison but was forced to wait four years before regaining his boxing license. Muhammad Ali died Friday in Arizona after suffering for decades from Parkinson’s syndrome. We’ll spend the rest of the hour remembering him after headlines.