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 oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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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 word 'mile' is derived from the Latin word for 1,000 - the number of paces it took the average Roman!
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Al Capone's armored limousine, after being seized by the feds, was later used to protect Franklin Delano Roosevelt (FDR), 32nd President of the US, after the attack on Pearl Harbor.
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