Snowboarding was created in the United States in the 1960s, when social change and the search for greater freedom of expression, along with advances in equipment, led to the development of new ways to play sports on snow. In the 1970s, the production of snowboards grew, and the sport began to gain popularity among surfers and skateboarders. Snowboarders began to ‘invade’ ski resorts. The USA hosted the first national snowboarding championships in 1982 and the first world championships in 1983. The International Snowboarding Federation (ISF) was formed seven years later and the International Ski Federation (FIS) introduced snowboarding as an FIS discipline in 1994.