There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
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When Charles Darwin first discovered the Galapagos Tortoises, he tried to ride them!
18
The Mint once considered producing doughnut-shaped coins!
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During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
To take an oath, ancient Romans put a hand on their testicles
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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.
13
In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
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