National Hockey League was created on 1917-11-26.
National Women's Hockey League was created in 1999.
English National Ice Hockey League was created in 1996.
Uruguayan National Roller Hockey League was created in 2008.
National Hockey League Players' Association was created in 1967-06.
National Hockey League All-Star Game was created in 1947.
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1917
The American Hockey League. (AHL)
It is a league that has many different branches, theres a junior league, western hockey league, and so on, but the main league is the national hockey league which is composed of 30 teams.
Latvian Hockey League was created in 1931.
Premier Hockey League was created in 2005.
Minor Hockey League was created in 2009.