1904 World Series

The resulting criticism from fans and writers caused Brush to reverse course during the offseason and lead the effort to formalize the World Series between the two leagues.

[8] Stung by criticism from fans and writers, Brush drafted rules that both leagues adopted in mid-February 1905.

[9] The rules compelled the two winning clubs to participate and governed the annual determination of sites, dates, ticket prices and division of receipts.

These new rules essentially made the World Series the premier annual Major League Baseball event.

Boston slumped in 1905, while New York repeated its NL championship and won the 1905 World Series against the Philadelphia Athletics.