The National Hockey League (NHL) is the highest level professional hockey league in the world, and is one of the four major professional sports leagues in North America, along with the NHL and the NHL. The NHL was founded in 1917 and has 30 teams, 24 of which are in the United States and 6 in Canada. The NHL's most famous teams include the Montreal Canadiens, Toronto Maple Leafs, Detroit Red Wings, New York Islanders, etc. Famous stars include Grosby, Gordie Howe, Jared Allen, Stacy Andrews, etc.