when was the first earth day
April 22, 1970 â Arbor Day â was the first Earth Day. Today, a common practice in celebration of Earth Day is still to plant new trees. Cherry trees blooming in Antelope Valley California, as captured by our friend Kerri Willerford. Thanks Kerri!
The first Earth Day â April 22, 1970 â marked the beginning of the modern environmental movement. Approximately 20 million Americans, especially on college campuses, participated in a national teach-in on environmental issues and protests against environmental deterioration on the first Earth Day.