Around the same time, high school students at Columbia HS in Maplewood NJ invented a disc game in 1968 that they called Ultimate. Among the three credited with its invention was future hollywood producer Joel Silver. Spread to mostly East Coast colleges by Columbia HS graduates in the early 1970s, and developed nearly in parallel in Southern California, the game began to have unofficial championships played in 1975. Loosely organized in its early years, Ultimate developed as an organized sport with the 1979 creation of the Ultimate Players Association. The sport grew rapidly throughout the country, establishing a Women's division in 1981, splitting its College division from the Club (adult) division in 1984, a Mixed Club division in 1997, and Youth championships from 1998. In 2010, the UPA re-branded as USA Ultimate, to be more in-line with other sports governing bodies.