Trivia: What was the alter ego of 1920s heavyweight boxing champ Jack Dempsey?
The Phantom of Philly
The Fighting Irish
The Thunderbolt
The Manassa Mauler
The correct answer is The Manassa Mauler
So why is this answer correct? : Boxing was one of the most popular sports in the 1920s, and American Jack Dempsey was one of the most popular boxers. Known as the “Manassa Mauler” after his hometown of Manassa, Colorado, Dempsey went on to become the World Heavyweight Champion from 1919 to 1926.