from 1937 to 1949 it was Joe Luis
Joe Louis
Jack Johnson. Not the singer, the black heavyweight champion of the world. Dates back to the roaring 20's I believe.
Samuel Okon Peter (born September 6, 1980 in Akwa Ibom, Nigeria), nicknamed "The Nigerian Nightmare," is a professional American based heavyweight boxer and the former WBC world heavyweight boxing champion.
ali
Muhammad ali
Mohamed Ali
Not at this time.
Rocky Marciano
Rocky Marciano is the only heavyweight champion not to loose a fight.
mike Tyson aged 20.
Of boxing...honestly, who cares anymore.
joe louis