The American League of Professional Baseball Clubs, or simply the American League (AL), is one of two leagues that make up Major League Baseball (MLB) in the United States and Canada. It developed from the Western League, a minor league based in the Great Lakes states, which eventually aspired to major league status. It is sometimes called the Junior Circuit because it claimed Major League status for the 1901 season, 25 years after the formation of the National League (the "Senior Circuit").
At the end of every season, the American League champion plays in the World Series against the National League champion; two seasons did not end in playing a World Series. Through 2013, American League teams have won 63 of the 110 World Series played since 1903, with 27 of those coming from the New York Yankees alone. The 2014 and 2015 American League champions are the Kansas City Royals. The New York Yankees have won 40 American League titles, the most in the league's history, followed by the Philadelphia/Kansas City/Oakland Athletics (15) and the Boston Red Sox (13).
American League sections
Intro History Teams American League presidents, 1901\u20131999 See also Sources Footnotes
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