Jack Dempsey, left, knocks down Luis Angel Firpo during their fight at the Polo Grounds on Sept. 14, ... His nickname — The Wild Bull of the Pampas — reinforced the mystique.

Dempsey also fought for meals in dozens of Colorado Wild West saloons, and rode rails across the state as a “Hobo.” “I can’t sing. I can’t dance.

On July 4, 1923, Heavyweight Champ Jack Dempsey defeated Tommy Gibbons in Shelby, a town of 1,000, counting dogs and prairie dogs. 'Cow town melee': On July 4, 1923, eyes of boxing world on Shelby ...

Heavyweight champion Muhammad Ali admires the fist of boxing great Jack Dempsey as they gag it up for the camera at the Boxing Writers' Association's annual dinner in New York on Jan. 17, 1965.

Robust and powerful, Dempsey demonstrated a talent for fighting, and embarked on a career as professional boxer “Jack” Dempsey, the Manassa Mauler. Aired 10/02/2014 | Rating NR.