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The Chicago River
Chicago is famous for a somewhat peculiar annual event: dyeing the Chicago River green. The tradition started in 1962, when city pollution-control workers used dyes to trace illegal sewage discharges and realized that the green dye might provide a unique way to celebrate the holiday. That year, they released 100 pounds of green vegetable dye into the river—enough to keep it green for a week!
Today, in order to minimize environmental damage, only 40 pounds of dye are used, making the river green for only several hours. Although Chicago historians claim their city's idea for a river of green was original, some Savannah natives believe the idea originated in their town. They point out that, in 1961, Savannah mayor Tom Woolley had plans for a green river. Due to rough waters on March 17, the experiment failed, and Savannah never attempted to dye its river again.
Chicago river: photos
Parade in New York
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