The sport was first played at the Paralympics as a medal sport in 1980. It had appeared in 1976 as a demonstration sport. At the 1992 Summer Paralympics, blind people were eligible to participate, with classification being run through IBSA, with all participants wearing goggles. At the 2000 Summer Paralympics, 19 assessments were conducted at the Games. This resulted in 5 class changes. Goalball competition at the London 2012 Summer Paralympics will be held at Copper Box (Olympic Park) from 30 August to 7 September. Sixty women and seventy-two men will compete for two medal events. A maximum of one men's team and one women's team per country is allowed, with six athletes per team. All competitors will wear eyeshades to ensure visual impairment equality.