The first international tournament was held in 1989 in Toronto, Ontario, Canada, with teams from Canada, the United States and Great Britain. In 1990, Wheelchair Rugby first appeared at the International Stoke Mandeville Games as an exhibition event, and in 1993 the sport was recognized as an official international sport for athletes with a disability by the International Stoke Mandeville Wheelchair Sports Federation (ISMWSF). In the same year, the International Wheelchair Rugby Federation (IWRF) was established as a sports section of ISMWSF to govern the sport. The first IWRF World Wheelchair Rugby Championships were held in Nottwil, Switzerland, in 1995 and wheelchair rugby appeared as a demonstration sport at the 1996 Summer Paralympics in Atlanta.