Happy St. Patrick’s Day! In Chicago, it has been a tradition since the first Mayor Daley to dye the Chicago River green for the St. Patrick’s Day parade. In 1992, videomaker Patrick Creadon, on assignment for THE 90’s, went downtown at 2:30am to cover the preparation for the parade and to talk with the guys from Chicago Journeymen Plumbers Local Union #110 about this tradition. The footage didn’t make it on the show, but 20 years later, we pulled it … Continue reading How they dye the river green