What was the first year that Earth Day was celebrated?
Answer: (Drag mouse from left arrow to right)
> 1970, specifically 4/22/70.
Earth Day was founded by United States Senator Gaylord Nelson, and in 1990, Denis Hayes made it an international observance. <
Earth Day was founded by United States Senator Gaylord Nelson, and in 1990, Denis Hayes made it an international observance. <
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