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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Contrary to popular belief, the first ironclad warships were built by Korea in the 16th century.
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In the 1930's, American track star Jesse Owens used to race against horses and dogs to earn a living.
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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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