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The American League is one of two leagues that make up Major League Baseball in the United States and Canada, with the other being the National League. It was established in 1901 and currently consists of 15 teams divided into three divisions: East, Central, and West. Each team plays a 162-game schedule during the regular season, with the top team from each division and a wild card team advancing to the postseason. The American League champion then faces off against the National League champion in the World Series to determine the overall Major League Baseball champion. The American League is unique in that it uses the designated hitter (DH) rule, which allows for a player to bat in place of the pitcher. This rule was adopted in 1973 and has since become a staple of American League play. Teams in the National League do not use the DH rule and instead require their pitchers to hit. The American League is an integral part of Major League Baseball, providing fans with exciting baseball action and showcasing some of the best players in the game. With its rich history and unique rules, the American League continues to be a beloved and important aspect of the sport of baseball.