Yes, it's called the CWHL (Canadian Women's Hockey League) It's being revamped for the 2010-2011 season. This league is formally called the NWHL (National Women's Hockey League).
The American League began as a minor league called the Western League whose first season was 1894. The named was changed to American League for the 1900 season and the AL declared itself a major league for the 1901 season.
After the 1997 season the American League team, Milwaukee Brewers, were moved to the National League.
The Most Valuable Player in the National Hockey League (NHL) during the season
With the current league format, each team plays 82 games in a NHL season. With 30 teams in the league, that's 2460 total games played.
The American League was founded in 1894 as a minor league and was known as the Western League. The name was changed to American League for the 1900 season and it remained a minor league. The American League declared itself a major league in 1901 and has been a major league ever since.
Because the National League has been in existence longer than the American League ... the National League's first season as a major league was 1876 and the American League's first season as a major league was 1901.
Wikipedia has a section near the beginning of their section on the Ontario Hockey League which details all team members, past and present, as well as other things such as the team's season schedule.
Before the 2013 season, the Houston Astros relocated from the National League Central Division to the American League West Division. As a result, there are now 15 teams in the National League and 15 in the American League.
American League teams play the National League teams for four series per season, in what is called "interleague play." also, in the World Series, an American League team plays a National League team.
Anaheim Ducks won in the 2006-2007 season. Detroit Red Wings won in the 2007-2008 season.
When the Tampa Bay Devil Rays and the Arizona Diamondbacks were scheduled to begin play in the American League and the National League, respectively, the new alignment for the 1998 season would have given each league 15 teams. To avoid odd numbers and scheduling headaches, the Milwaukee Brewers agreed to move from the American League to the National League after the 1997 season. After the 2012 season, the two leagues will have 15 teams apiece when the Houston Astros of the National League Central move to the American League West.