The Summer Paralympic Games or the Games of the Paralympiad, are an international multi-sport event, where athletes with physical disabilities compete. This includes athletes with mobility disabilities, amputations, blindness, and cerebral palsy. The Paralympic Games are held every four years, organized by the International Paralympic Committee. Medals are awarded in each event, with gold medals for first place, silver for second and bronze for third, a tradition that the Olympic Games started in 1904.