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VOICE OVER: Patrick Mealey WRITTEN BY: Joshua Garvin
These tools changed the way we interact with the world and represent huge technological leaps forward. Welcome to WatchMojo, and today we're counting down our picks for the greatest inventions in American history. Our countdown of American inventions that changed the world includes E-mail (1971), The Light Bulb (1879), The Airplane (1903), and more! read more...

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