There are around 41,806 different spoken languages in the world today.
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There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
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The word 'mortgage' comes from a French law term that means 'death pledge'.
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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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Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
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In Denmark, "Fart-kontrol" means "Speed check".
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