A century ago today, the first pitch was tossed at Weeghman Field in Chicago in a Federal League game between the Kansas City Packers and the Chicago Whales. The baseball stadium that was christened that day is what we now know as Wrigley Field, the home of the Chicago Cubs.

Below is what the program for that first game looked like, via Wrigley Blog. Happy Birthday, Wrigley! For more on this historic milestone, you can visit WrigleyField100.com.