"Chicago's 2024 St. Patrick's Day Celebrations: A Complete Guide"
The Chicago River will be dyed green on March 16th for St. Patrick's Day, a tradition dating back to 1961 when the Chicago Plumbers Union discovered a dye used to detect leaks turned the river green. The event can be watched live on NBC Chicago's streaming channel, and the St. Patrick's Day Parade will follow. The union's secret dyeing process involves spraying a mysterious mixture that initially appears orange before magically turning green, and the exact recipe remains a closely guarded secret.