During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
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The ancient Egyptians bought jewelry for their pet crocodiles.
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Tickling was a form of torture used in ancient China on nobility because it left no mark and recovery was quick.
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The great wall of China is 1,400 miles long!
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Recently, archaeologists excavating in the old medieval town of Odense in Denmark uncovered 700-year-old barrels of poop - and, to their surprise, they still smelt.
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In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
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Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
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London's Pall Mall became the first street lit by gaslight in 1807!
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