MLB

MLB stands for Major League Baseball, which is the professional baseball organization in the United States and Canada. It is composed of two leagues: the American League (AL) and the National League (NL). Each league is further divided into three divisions, making a total of 30 teams in the league. MLB is responsible for organizing the baseball season, including the regular season, the playoffs, and the World Series, which determines the league champion. Founded in 1903, it is one of the oldest professional sports leagues in North America and is considered the highest level of baseball competition in the world. MLB also regulates the rules of the game and oversees player contracts and relations with minor leagues.