Two IAAF world championship events preceded the inaugural edition of the World Championships in Athletics in 1983. The 1976 World Championships had just one event – the men's 50 kilometres walk which was dropped from the Olympic programme for the 1976 Summer Olympics and the IAAF responded by setting up their own contest. Four years later, the 1980 World Championships contained only two newly approved women's events, (400 metres hurdles and 3000 metres), neither of which featured on the programme for the 1980 Summer Olympics.