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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'⸮' is a punctuation mark that was first proposed in the 1580s to denote sarcasm or irony.
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The P.S. at the end of a letter stands for Post Script.
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English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
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The technical term for a cat’s hairball is a “bezoar.”
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The six official languages of the United Nations are Arabic, Chinese, English, French, Russian, and Spanish.
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