User:G.I.Luvmoney/sandbox

List of World Heavyweight Champions
as widely acclaimed by the public, or as recognized by one or more international boxing sanctioning organizations: IBF - International Boxing Federation (organized 1983, all champions listed) IBO - International Boxing Organization (since 1992, champions since 1999 listed) IBU - International Boxing Union (title merged into that of the World Boxing Council in 1963) NBA - National Boxing Association (rebranded as the World Boxing Association in 1962) NYSAC - New York State Athletic Commission (title merged into that of the World Boxing Council in 1970) WBA - World Boxing Association (since 1962, all champions listed) WBC - World Boxing Council (since 1963, all champions listed) WBO - World Boxing Organization (since 1988, all champions listed)