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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English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
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The equivalents of the English saying "That's Greek to me" are "This appears to be Spanish" (German), "This is Chinese to me" (Dutch), "It's German to me" (Philippines), "It's Hebrew" (Finnish), "It's Chinese to me" (Hebrew), "Sounds like Mars language/These are chicken intestines" (China).
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The United States does not have an official language.
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The six official languages of the United Nations are Arabic, Chinese, English, French, Russian, and Spanish.
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The dab of toothpaste you squeeze onto your toothbrush is called a "nurdle".
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