162 games are played in the regular season for both the National League and the American League.
In the 2007 season, Sammy Sosa played for the Texas Rangers of the American League.
The American League grew out of the minor league Western League (founded 1893) which renamed itself the American League in October 1899. The league declared itself a major league on January 28, 1901, and played its first major league season that year.
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.
Each team plays 162 games in the Major League Baseball regular season. EDIT: Being that there are 30 teams in Major League Baseball (14 in the American League, 16 in the National League), this equates to 2430 scheduled games for a regular season.
Here is the entire baseball session. First are what are called exhibition games, or the preseason games. Then the season starts. In the middle of the season is the All-Star Game and the Home Run Derby. Then the second half of the season is played. Now comes the post season: The American/National League Division Series The American/National League Championship Series The World Series
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.
The 2012 Major League Baseball season will mark the last time that the National League has 16 teams versus 14 for the American League. In 2013, the Houston Astros will move from the National League Central to the American League West, giving each league 15 teams.
1960 was the final season that Major League Baseball used the 154 game schedule. In 1961 the American League went to a 162 game schedule and the National League followed in 1962.
Major league baseball is played in the Spring, Summer and Fall in the US. It begins in March in recent years.
Jim Rice 1978