Boxing magazine The Ring has awarded world championships in professional boxing within each weight class from its foundation in 1922. The first Ring world title belt was awarded to heavyweight champion Jack Dempsey, and the second was awarded to flyweight champion Pancho Villa. The magazine stopped giving belts to world champions in the 1990s, but reintroduced their titles in 2001. Boxers who won the title but were immediately stripped and the title bout being overturned to a no contest will not be listed.