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April 22, 1970 - Earth Day begins...
The first Earth Day April 22 1970 This Day In History
The First Earth Day History- April 22, 1970
Earth Day 1970–2022: What's Changed? #datavisualization
HISTORY OF | Earth Day
Earth Day began on April 22nd 1970 Here Is The Story
Gaylord Nelson and the Origins of Earth Day
On this day in history, 22nd April 1970 the first earth day.
Earth Day 2020 by HARSHEEN - How Earth Day began? The first Earth Day was held on April 22, 1970
Earth Day 1970 Part 1: Intro (CBS News with Walter Cronkite)
Walter Cronkite's Earth Day broadcast in 1970
Sea Talk - Earth Day History