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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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In 1537, England's King Henry VII officially declared February 14th the holiday of St. Valentine's Day.
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Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
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February 1865 is the only month in recorded history to not have a full moon.
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Approximately 40% of the U.S. paper currency in circulation was counterfeit by the end of the Civil War.
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During the Gold Rush in 1849, some people paid as much as $100 for a glass of water!
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No one knows who designed the first American Flag.
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