Mike Tyson was 20 when he beat Trevor Berbick for the WBC title.
Mohammad Ali or Cassius Clay was the first boxer ever to win the world heavyweight title thrice.
Prakash Padukone was the youngest to win Badminton National Title.
David Kotei, former featherweight champion.
a famous aboriginal boxer.. he was the first aboriginal in boxing history to win a world title
Randy Orton won it when he was 23 or 24
Lionel Rose was a bantamweight boxer and the first Indigenous Australian to win a world title.
Lenox Lewis is a boxer from Britain. He was the first British boxer to win the undisputed heavyweight title since an earlier boxer won the title in the year 1899.