A legend has to start somewhere, right? Ours began in St. Paul in 1935. For forty years, Green Mill was a neighborhood staple & is still the oldest licensed pub in St. Paul. In 1975, on a trip to Chicago the Green Mill owners fell in love with the deep dish pizza and added their version of it to the Green Mill menu. What happened next was pizza history. Word spread. Lines formed. Awards were won. A legend was born.