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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The rarest motorcycle in the world was found behind a brick wall in Chicago and has engine technologies well ahead of its time. The “Traub” is still running to this day.
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A Kodak engineer constructed the first digital camera in 1975. They didn't want to go digital. They went bankrupt in 2012.
9
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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The first chocolate eggs were made in Germany in the 19th century and remain one of the most popular Easter candies today.
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There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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