Ice hockey is a contact team sport played on ice, usually in a rink, in which two teams of skaters use their sticks to shoot a vulcanized rubber puck into their opponent's net to score points. The sport is known to be fast-paced and physical, with teams usually consisting of six players each: one goaltender, and five players who skate up and down the ice trying to take the puck and score a goal against the opposing team.
Ice hockey is most popular in Canada, central and eastern Europe, Scandinavia, and the northern regions of the United States. Ice hockey is the official national winter sport of Canada, where the modern version of the sports was created, and enjoys immense popularity; alongside Canada, hockey is the most popular winter sport in Finland, Latvia, the Czech Republic, Sweden, Slovakia, Belarus and Switzerland. In North America, the National Hockey League (NHL) is the highest level for men's hockey and the most popular. The Kontinental Hockey League (KHL) is the highest league in Russia and much of Eastern Europe. The International Ice Hockey Federation (IIHF) is the formal governing body for international ice hockey, with the IIHF managing international tournaments and maintaining the IIHF World Ranking. Worldwide, there are ice hockey federations in 74 countries.
Ice hockey is believed to have evolved from simple stick and ball games played in the 18th and 19th century United Kingdom and elsewhere. These games were brought to North America and several similar winter games using informal rules were developed, such as "shinny" and "ice polo". The contemporary sport of ice hockey was developed in Canada, most notably in Montreal, where the first indoor hockey game was played on March 3, 1875. Some characteristics of that game, such as the length of the ice rink and the use of a puck, have been retained to this day. Amateur ice hockey leagues began in the 1880s, and professional ice hockey originated around 1900. The Stanley Cup, emblematic of ice hockey club supremacy, was first awarded in 1893 to recognize the Canadian amateur champion and later became the championship trophy of the NHL. In the early 1900s, the Canadian rules were adopted by the Ligue Internationale de Hockey sur Glace, the precursor of the IIHF and the sport was played for the first time in the Olympics in the Olympic Games of 1920.
In international competitions, the national teams of six countries (the "Big Six") predominate: Canada, Czech Republic, Finland, Russia, Sweden and the United States. Of the 69 medals awarded all-time in men's competition at the Olympics, only six medals were not awarded to one of those countries. In the annual Ice Hockey World Championships, 177 of 201 medals have been awarded to the six nations. Teams outside the "Big Six" have won only five medals in either competition since 1953: All 12 Women's Olympic and 36 IIHF World Women's Championships medals have been awarded to one of these six countries, and every gold medal in both competitions has been won by either the Canadian national team or the United States national team.
In Canada, the United States, and some European countries it is known simply as "hockey"; the name "ice hockey" is used in places where "hockey" more often refers to field hockey, such as South America, Asia, Africa, Australasia, and some European countries. In Russia and Ukraine, where "hockey" can also refer to bandy, ice hockey is often called "hockey with puck".