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

  • Explorer Ferdinand Magellan portrait

    Public domain

    On this day: November 28

    Magellan reaches the Pacific, William Shakespeare gets hitched, the Grand Ole Opry debuts, Olympic gymnast Nadia Comaneci defects, and Jeffrey Dahmer is killed in prison, all on this day.