The International Rugby Board (IRB), now known as World Rugby, is the global governing body for the sport of rugby union. Established in 1886, it oversees the rules, regulations, and development of rugby worldwide. The organization is responsible for organizing major international competitions, including the Rugby World Cup, which is held every four years. World Rugby also works to promote the sport at all levels, from grassroots to elite competitions. It provides support and resources to member unions, ensuring the growth and sustainability of rugby globally. The board also focuses on player welfare, safety, and the integrity of the game.