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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Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
Ernest Vincent Wright wrote a novel, "Gadsby", which contains over 50,000 words -- none of them with the letter E!
77
The word "clitoris" comes from the Greek word meaning "side of a hill".
51
The onion is named after the Latin word 'unio' meaning large pearl.
69
'⸮' is a punctuation mark that was first proposed in the 1580s to denote sarcasm or irony.
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