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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In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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In the Bemba tribe of southern Africa, if someone does something hurtful, they take the person to the center of the town where the entire tribe comes and surrounds them. For two days they tell him every good thing he has ever done, because they believe that every person comes into the world as good.
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The iconic roar made by Godzilla was produced by rubbing a leather glove across the strings of a double bass.
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