Major League Baseball (MLB) is the professional organization that oversees baseball in the United States and Canada. It consists of two main leagues: the American League and the National League. Each league is made up of teams that compete in a regular season, followed by playoffs to determine the champion. The ultimate goal is to win the World Series, a best-of-seven championship series held every October. MLB has a rich history, dating back to the late 19th century, and features legendary players like Babe Ruth and Jackie Robinson. The sport is known for its unique traditions, such as the seventh-inning stretch and the iconic All-Star Game, where the best players showcase their skills.