The 1970s were also the time for European Athletics to raise the issue of doping. They started establishing more systematic controls, pushing for tests to be extended to non-European athletes as well. The European Championships of 1974 included a wider range of banned products than previously, with anabolic steroids being checked at all other subsequent events. As a continent, Europe clearly was "the nucleus of the IAAF" and an example to be followed for other IAAF members. As such, the European Association became an experimental platform for international athletics, organising events before they were recognized by the International Olympic Committee. For example, the women's marathon was included in the 1982 championships and became an Olympic distance for female athletes at the 1984 Summer Olympics.