Top 20 Most Important Inventions Of All Time

These inventions altered the course of human history. Welcome to WatchMojo, and today we’re counting down the most critical creations, inventions, objects, and tools created by humans throughout history. Our countdown of the most important inventions of all time includes the Printing Press, Refrigeration, the Internet, Vaccination, The Wheel, and more! What invention do you think was the most important? Tell us in the comments!

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