During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
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The last time American Green cards were actually green was 1964.
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In 1542, French aristocrat Marguerite De La Rocque survived being marooned for 2 years alone on a remote island off the coast of Quebec.
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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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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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When Charles Darwin first discovered the Galapagos Tortoises, he tried to ride them!
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Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
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