Dyeing the Chicago River green is a St. Patrick’s Day tradition. How did it start?
In 1962, Chicago city workers dumped 100 pounds of dye into the river flowing through downtown Chicago. It left the river emerald green for an entire week and kick-started an annual tradition. The city celebrated the 60th anniversary of the event this past weekend. Read the full story by National Public Radio.
Great Lakes Commission
https://www.glc.org/dailynews/20220318-green-chicago-river
