Earth Day by the numbers

Posted: 0:04 PM EDT Apr 10, 2012   Updated: 3:00 AM EDT Apr 22, 2015

Founded 45 years ago as a day of environmental education, Earth Day is now celebrated worldwide. Check out the numbers behind this global holiday.

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Slideshow Of The Day

On this Day

  • Liberation of Paris, World War II

    U.S. Army

    On this day: August 29

    American troops march through a liberated Paris, the King of Pop is born, The Beatles perform their last concert before paying fans, and Hurricane Katrina hits the Gulf Coast, all on this day.