This St. Patrick’s Day water play sensory table is inspired by the city of Chicago’s tradition of turning the river water green as part of their St. Patrick’s Day celebrations.
The tradition of coloring the water vibrant green in Chicago became an annual event in 1962, but the origins of this practice started much earlier. A green substance was used to test the river water for pollution in the early 1900s and continued in the following years. People liked seeing the change in color, and in 1962 the practice was implemented for St. Patrick’s Day. In 1966 the powder used became a more environmentally friendly vegetable dye.
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