Earth Day by the numbers

Published: Apr 10 2012 12:04:15 PM EDT   Updated On: Apr 22 2014 02:00:00 AM EDT

Founded in 1970 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

  • Pink Phink, first Pink Panther short

    United Artists

    On this day: December 18

    America celebrates its first official day of thanksgiving, "The Nutcracker" debuts, the first "Pink Panther" short premieres, and the first nuclear power plant in America goes online, all on this day.