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The first Earth Day April 22 1970 This Day In History
On this day in history, 22nd April 1970 the first earth day.
The first Earth Day - Apr 22, 1970
The First Earth Day History- April 22, 1970
1970: The first Earth Day in Philadelphia
Earth Day April 22, 1970 - the beginning of its message: Act or Die
The first Earth Day April 22 1970
April 22, 1970 - Earth Day begins...
1970: The first Earth Day in New York City
HISTORY OF | Earth Day
Earth Day 1970 Part 1: Intro (CBS News with Walter Cronkite)
Earth Day: An SOS for Survival: April 22, 1970