During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
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In 1918, after the treaty of Versailles (end of WWI), the French Commander-in-chief said "This is not a peace. It is an Armistice for 20 years." 20 years and 65 days later, WWII happened.
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Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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Cleopatra wasn't Egyptian; she was Greek.
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Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
13
The first coast-to-coast telephone line was established in 1914.
33
The native Americans planted three sisters (corn, beans, and squash) together so that they would benefit each other. The corn provides a structure for the beans to climb. The beans provide the nitrogen to the soil, and the squash spreads along the ground preventing weeds.
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