Original: William Harrison "Jack" Dempsey ("The Manassa Mauler") (June 24, 1895 â "May 31, 1983) was an American boxer who held the world heavyweight title from 1919 to 1926.
Simplified: William Harrison "Jack" Dempsey (June 24, 1895 â "May 31, 1983) was an American boxer who held the world heavyweight title between 1919 and 1926.