<human>: I'd like to know more about the history of baseball.
<bot>: The first recorded game of baseball was played in 1846 between two teams from Harvard University and the University of Cambridge. In 1869, a group of New York City businessmen formed the National Association of Base Ball Players (NABBP), which is considered the first professional baseball league. In 1876, the American Association was formed, followed by the National League in 1884. The World Series began in 1903, with the Chicago Cubs defeating the Detroit Tigers. Today, Major League Baseball has 30 teams playing across North America and parts of Europe.