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 included. The IIHF considers the 1920 tournament to be the first Ice Hockey World Championship. From then on, the two events occurred concurrently, and every Olympic tournament until 1968 is counted as the World Championship. The Olympic Games were originally intended for amateur athletes, so the players of the National Hockey League (NHL) and other professional leagues were not allowed to play. The first Winter Olympic Games were held in 1924 in Chamonix, France. Chapter 1, article 6, of the 2007 edition of the Olympic Charter defines winter sports as "sports which are practised on snow or ice". Ice hockey