History of Earth Day

Bill Petro
4 min readApr 22, 2021

April 22 is called Earth Day because it both commemorates and celebrates the observance of the anniversary of our discovery of planet Earth. At this time, by all accounts, there is general agreement that Earth is far superior to the planet from which we came, as we shall recount below. Meanwhile, several companies on Earth celebrate it as a holiday, as mine does, or draw significant attention to it with feats of Interweb and mobile legerdemain.

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Bill Petro

Writer, historian, technologist. Former Silicon Valley tech exec. Author of fascinating articles on history, tech, pop culture, & travel. https://billpetro.com