Dyeing the Chicago River green is a St. Patrick's Day tradition. How did it start?
- Posted on March 17, 2025
- By NPR
- 1 Views
Dyeing the Chicago River green is a St. Patrick's Day tradition. How did it start?
For more than 60 years, Chicago has turned its downtown river green to celebrate St. Patrick's Day. The annual tradition actually has its roots in a big problem for the city: sewage.
