The World Series is the championship series of Major League Baseball (MLB) held annually in October. It features the champions of the American League and the National League competing in a best-of-seven playoff format. The team that wins four games first is crowned the champion. The World Series has a rich history, dating back to 1903, and is one of the most prestigious events in American sports. The series showcases the top talent in baseball and attracts millions of viewers, making it a significant cultural event in the United States.