In 1967, the ISU adopted short track speed skating, and the first official ISU World Championships took place in 1981. Short track speed skating became part of the official Olympic program in 1992. The earliest speed skating competitions hosted by the ISU, between 1976 and 1980, were held under different names but have retrospectively received World Championship status. The discipline was known as "indoor speed skating" at first, until being renamed "short track speed skating" when indoor rinks for the longer speed skating events were introduced.