The P.S. at the end of a letter stands for Post Script.
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The United States does not have an official language.
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The technical term for a cat’s hairball is a “bezoar.”
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The word "listen" contains the same letters as "silent."
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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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