Earth Day is an annual event, celebrated on April 22, on which day events worldwide are held to demonstrate support for environmental protection.
Numerous communities celebrate Earth Week, an entire week of activities focused on the environmental issues that the world faces.
The first Earth Day celebrations took place in two thousand colleges and universities, roughly ten thousand primary and secondary schools, and hundreds of communities across the United States.
More importantly, it "brought 20 million Americans out into the spring sunshine for peaceful demonstrations in favor of environmental reform."
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