Skip to: Content
Skip to: Site Navigation
Skip to: Search


How much do you know about Earth Day? Take our quiz!

Earth Day volunteers remove weeds as they work to restore Candlestick Point State Recreation Area's community garden, in San Francisco on April 14, 2012. (AP Photo/California State Parks Foundation, Darryl Bush, HO)

April 22 marks the 42nd anniversary of Earth Day, a day intended to inspire awareness and promote appreciation for the Earth's natural environment. In honor of the holiday, test your knowledge of Earth Day history, trivia, and statistics. 

- Andrew MachContributor

1. When was the first Earth Day celebrated?

Earth Day was first celebrated in San Francisco on March 21, 1970, the first day of spring in the northern hemisphere.

Earth Day was first celebrated in San Francisco on March 21, 1970, the first day of spring in the northern hemisphere.

Earth Day was first celebrated in San Francisco on March 21, 1970, the first day of spring in the northern hemisphere.

Earth Day was first celebrated in San Francisco on March 21, 1970, the first day of spring in the northern hemisphere.

March 21, 1970

 

April 22, 1970

 

May 21, 1970

 

June 22, 1970

 
Javascript is disabled. Quiz scoring requires Javascript.

Read Comments

View reader comments | Comment on this story

  • Weekly review of global news and ideas
  • Balanced, insightful and trustworthy
  • Subscribe in print or digital

Special Offer