Fifty years ago today, on February 25th, 1964, Muhammad Ali defeated Sonny Liston becoming the heavyweight boxing champion of the world.
Although he's known as the champ now, the odds were against the then 22-year-old as the media and critics had their bets on Liston, who was a proven fighter. Meanwhile, Ali seemed as confident as ever, shouting to his opponent during the weigh in, "I can beat you anytime, you chump…I am the greatest. I am king…I float like a butterfly, sting like a bee."
Ali went on to become the first man to win the heavyweight championship three times in a row.
Watch the historic fight in the video above.