Earth Day
Americannoun
Etymology
Origin of Earth Day
First recorded in 1970
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With the debate taking place on Earth Day, environmental issues are also likely to be raised.
From Los Angeles Times • Apr. 22, 2026
The so-called Refugio oil spill of 2015 evoked memories of the Santa Barbara spill of 1969, which turbocharged a nascent environmental movement and helped launch Earth Day as an annual event.
From Los Angeles Times • Apr. 21, 2026
Just in time for National Parks Week and Earth Day, no less.
From Slate • Apr. 22, 2025
No wonder, then, that Americans planned nationwide Earth Day protests.
From Slate • Apr. 22, 2025
The first Earth Day was held in April 1970.
From "The Omnivore's Dilemma" by Michael Pollan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
