Muhammad Ali, the world's greatest sporting hero, has died, aged 74. He was in hospital with breathing problems. His children flew to be with him at the end. People say Ali is the best boxer ever. He was the world heavyweight champion three times. His nickname is 'The Greatest'. People think he was the greatest because of what he did outside of boxing. He was a civil rights hero and opponent of the Vietnam War. He also worked for world peace for over 50 years.
Famous people have paid tribute to Ali. One said: "Ali transformed this country and impacted the world....His legacy will be part of our history for all time." The U.N. Secretary-General said Ali fought for a better world, "to lift up humanity". Martin Luther King's daughter said he was, "a champion in so many ways". Ali said: "I would like to be remembered as a man…who treated everyone right [and] tried to unite all humankind through faith and love."
