The Olympic Order is the highest award of the Olympic Movement and is awarded for particularly distinguished contributions to the Olympic Movement, i.e. recognition of efforts worthy of merit in the cause of sport. It was established in May 1975 by the International Olympic Committee as a successor to the Olympic Certificate. The Olympic Order originally had three grades (gold, silver and bronze). In 1984, at the 87th IOC Session in Sarajevo (Yugoslavia), it was decided that in future there would be no distinction between the silver and bronze order. The gold order would continue to be awarded to heads of state and for exceptional circumstances. Traditionally, the IOC bestows the Olympic Order upon the chief national organiser(s) at the closing ceremony of each respective Olympic Games.