The 1906 World Series was the second edition of the modern World Series, held between the Chicago Cubs and the Chicago White Sox. The series took place from October 10 to October 14, 1906, and featured a best-of-seven format. The Cubs entered the series as the National League champions, while the White Sox represented the American League. The White Sox won the series four games to two, marking their first championship title. This victory was significant as it was the first time a Chicago team had won the World Series, creating a historic rivalry between the two clubs in the city.