The Board was formed to continue where "The Ring" "left off" in the aftermath of its purchase by Golden Boy Promotions in 2007 and the following dismissal of Nigel Collins. After the new editors announced a controversial new championship policy in May 2012, three prominent members of the Ring Advisory Panel resigned. These three members (Springs Toledo, Cliff Rold and Tim Starks) became the founding members of the "Transnational Boxing Rankings Board", which was formed over the summer of 2012 with the assistance of Stewart Howe of England. Since 2012, a version of lineal champions is predetermined by the "Transnational Boxing Rankings Board", which promotes the concept of a singular world champion per weight class. Another version of lineal champions are listed on the "Cyber Boxing Zone" website which list lineal champions of the "Queensberry Era" to date. The International Boxing Organization (IBO) is sometimes included in the list of major boxing organizations. Besides the IBO, there are other sanctioning bodies. They are: World Professional Boxing Federation (WPBF), International Boxing Association (IBA), International Boxing Council (IBC), International Boxing Board (IBB), International Boxing League (IBL), International Boxing Union (IBU), Global Boxing Association (GBA), Global Boxing Council (GBC), Global Boxing Federation GBF, Global Boxing Organization (GBO), Global Boxing Union (GBU), National Boxing Association (NBA), Transcontinental World Boxing Association (TWBA), Universal Boxing Association (UBA), Universal Boxing Council (UBC), Universal Boxing Federation (UBF), Universal Boxing Organization (UBO), UNIBOX, United States Boxing Council (USBC), World Athletic Association (WAA), World Boxing Board (WBB), World Boxing Championship Committee (WBCC), World Boxing Foundation (WBFo), World Boxing Institute (WBI), World Boxing League (WBL), World Boxing Network (WBN), World Boxing Union (WBU). The International Boxing Association (IBA) is not to be confused with the International Boxing Association (AIBA), a French acronym for Association Internationale de Boxe Amateur, which sanctions amateur matches.The National Boxing Association (NBA) was established in 1984 and is not to be confused with the original National Boxing Association that was established in 1921 and changed its name to World Boxing Association (WBA) in 1962. The fighters that compose this group are classified in two different categories depending on the level of championships won:  Following is a list of boxers who won titles in three different weight categories.