There are three common long-distance running events in track and field competitions: 3000 metres, 5000 metres and 10,000 metres. The latter two races are both Olympic and World Championship events outdoors, while the 3000 m is held at the IAAF World Indoor Championships. The 5000 m and 10,000 m events have their historical roots in the 3-mile and 6-mile races. The 3000 m was historically used as a women's long-distance event, entering the World Championship programme in 1983 and Olympic programme in 1984, but this was abandoned in favour of a women's 5000 m event in 1995. Marathons, while long-distance races, are typically run on street courses, and often are run separately from other track and field events.