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	Before Earth Day 1970 (Paul A. Wozniak) View
	What changed since Earth Day was first celebrated in 1970 (CBS News) View
	April 22, 1970 - Earth Day begins... (EARTHDAYORG) View
	Earth Day 1970 - 2020: 50th Anniversary \|\| Time Will Tell #datavisualization (American Museum of Natural History) View
	Earth Day 1970–2022: What's Changed #datavisualization (American Museum of Natural History) View
	The history of Earth Day \| 1970 to now (CBS 8 San Diego) View
	The First Earth Day History- April 22, 1970 (Historical Selfie) View
	CBS News: Earth Day 1970 Flashback (CBS New York) View
	Adam Rome: Earth Day 1970: The Teach-In That Made the Green Generation (The Gilder Lehrman Institute of American History) View
	Earth Day 1970 – 2018: Sea Changes #datavisualization (American Museum of Natural History) View