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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The ancient Egyptians thought the function of the brain was to produce snot.
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The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
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France’s King Louis XIV was offered biological weapons by an Italian chemist. He not only refused, but also paid the chemist an annual salary to never reveal the technology to anyone else.
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There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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Each king in a deck of playing cards represents a great king from history: spades - King David, clubs - Alexander the Great, hearts - Charlemagne, and diamonds - Julius Caesar.
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During WW2, captured German officers were sent to Britain as POWs and lived in luxury in Trent Park. This was done to make them feel relaxed. However, they were being listened to by 100 ‘listeners’. They revealed secrets about the holocaust, events in Berlin, Hitler's madness and V2 rocket bases.
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