Modern pentathlon again as one of the 25 core sports of the Olympic program through to 2020. The governing body, Union Internationale de Pentathlon Moderne (UIPM), administers the international sport in more than 90 countries in all the continents of the world. The foundation of the modern pentathlon is disputed. On the one hand, Baron Pierre de Coubertin, the founder of the modern Olympic Games, claimed authorship. On the other hand, Viktor Balck, the President of the Organizing Committee for the 1912 Games, showed that he made use of the long tradition of Swedish military multi-sports events, to create a manageable modern
Ice hockey at the Olympic Games entered teams of athletes who were all nominally students, soldiers, or working in a profession, but many of whom were in reality paid by the state to train on a full-time basis. In 1986, the International Olympic Committee (IOC) voted to allow professional athletes to compete in the Olympic Games starting in 1988. The National Hockey League (NHL) was initially reluctant to allow its players to compete because the Olympics are held in the middle of the NHL season, and the league would have to halt play if many of its players participated. Eventually, NHL players were admitted starting in