1919 — Jack Dempsey wins the world heavyweight title at Toledo, Ohio, when Jess Willard fails to answer the bell for the fourth round.
1923 — Jack Dempsey beats Tommy Gibbon in 15 for the heavyweight title. The fight almost bankrupts the town of Shelby, Montana, which borrowed heavily to stage it.
Challenger Tommy Gibbons, left, pulled back as heavyweight champion Jack Dempsey, missed with a left during their title bout in Shelby, Montana, on July 4, 1923. The referee was Jim Dougherty, who then lived near Philadelphia, Pennsylvania. (AP Photo)