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Major League Baseball (MLB)

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  • Dave Robertson (1889 - 1970)
    Davis Aydelotte Robertson (September 25, 1889 – November 5, 1970) was an American professional baseball player. He was an outfielder over parts of nine seasons with the New York Giants, Chicago Cub...
  • Kevin Gross
    Kevin Frank Gross (born June 8, 1961) is a former Major League Baseball pitcher who played from 1983 through 1997. Gross played for five different teams during his career: the Philadelphia Phillies (...
  • Craig Breslow
    Craig Andrew Breslow is an American professional baseball pitcher in the Toronto Blue Jays organization. He has played in Major League Baseball for the San Diego Padres, Boston Red Sox, Cleveland India...
  • Mike Piazza
    Michael Joseph Piazza (/piˈɑːtsə/; born September 4, 1968) is a former American professional baseball catcher who played 16 seasons in Major League Baseball (MLB), from 1992 to 2007. He played most n...
  • Greg Maddux
    Gregory Alan Maddux (born April 14, 1966) is an American former Major League Baseball (MLB) pitcher. Maddux is best known for his accomplishments while playing for the Atlanta Braves and the Chicago ...

Major League Baseball (MLB) is a professional baseball organization that constitutes one of the four major professional sports leagues in North America. Teams play in the American League (AL) and National League (NL), which operated as separate legal entities from 1901 and 1876 respectively. In 2000, the leagues merged into a single organization led by the Commissioner of Baseball. The organization oversees minor league baseball leagues, which operate about 240 teams affiliated with the major-league clubs. With the International Baseball Federation, the league also manages the international World Baseball Classic tournament.

Baseball's first professional team was founded in Cincinnati in 1869. The first few decades of professional baseball were characterized by rivalries between leagues and by players who often jumped from one team or league to another. The period before 1920 in baseball was known as the dead-ball era; players rarely hit home runs during this time. Baseball survived a game-throwing incident known as the Black Sox Scandal in the 1919 World Series. Baseball rose in popularity in the 1920s, and survived potential downturns during the Great Depression and World War II. Shortly after the war, baseball's color barrier was broken by Jackie Robinson.

The 1950s and 1960s were a time of expansion for the AL and NL, then new stadiums and artificial turf surfaces began to change the game in the 1970s and 1980s. Home runs dominated the game during the 1990s, and media reports began to discuss the use of anabolic steroids among Major League players in the mid-2000s. In 2006, an investigation produced the Mitchell Report, which implicated many players in the use of performance-enhancing substances, including at least one player from each team.

Today, MLB is composed of thirty teams: Twenty-nine in the United States and one in Canada. Teams play 162 games each season. Five teams in each league advance to a four-round postseason tournament that culminates in the World Series, a best-of-seven championship series between the two league champions that dates to 1903. Baseball broadcasts are aired throughout North America and in several other countries throughout the world. Games are aired on television, radio, and the internet. MLB has the highest season attendance of any sports league in the world with more than 74 million spectators in 2013.

Current MLB Teams

Defunct Professional Baseball Teams