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The first Earth Day - Apr 22, 1970
The first Earth Day April 22 1970 This Day In History
The First Earth Day History- April 22, 1970
April 22, 1970 - Earth Day begins...
Earth Day: An SOS for Survival: April 22, 1970
1970: The first Earth Day in Philadelphia
1970: The first Earth Day in New York City
The first Earth Day April 22 1970
Earth Day April 22, 1970 - the beginning of its message: Act or Die
1970: The first Earth Day in Philadelphia
Earth Day 1970–2022: What's Changed? #datavisualization
Almanac: The first Earth Day