Earth Day by the numbers

Posted: 12:04 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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On this Day

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    On this day: August 27

    Krakatoa blows its top, The Guinness Book of World Records debuts, "Mary Poppins" premieres, The Beatles meet The King, and a guitar great dies, all on this day.