The people behind these decisions, inventions, and discoveries were some seriously smart cookies. Welcome to WatchMojo, and today we’re counting down our picks for the best and most consequential decisions that humans have ever made. Our countdown of the smartest decisions in history includes Harnessing Fire, Forming the United Nations, Assaulting the Beaches on D-Day, Inventing the Wheel, and more! Would you have made these same decisions? Let us know in the comments below!

Watch more great history videos here:
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Top 10 Mind-Blowing Alternate Histories That Almost Happened:    • Top 10 Mind-Blowing Alternate Histori...  
Top 10 Historically Accurate Movies:    • Top 10 Historically Accurate Movies  

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