Happy Saint Patrick’s DaySo why Green on Saint Patrick’s Day?
According to some accounts, blue was the first color associated with St. Patrickâ€™s Day, but that started to change in the 17th century. Green is one of the colors in Irelandâ€™s tri-color flag, and it has been used in the flags of several Irish revolutionary groups throughout history. Ireland is the â€œEmerald Isle,â€ so named for its lush green landscape. Green is also the color of spring, the shamrock, and the Chicago River, which the Midwestern city has dyed green on St. Patrickâ€™s Day for the past 40-odd years.