Fed, thank you so much for the reply!
But can you clarify?
"In this area" - are You referring to any particular obvious to You? Sorry if stupid question, I really don't quite understand

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the earliest date that called me (it was a pair of phrases, actually, rather than a detailed examination or something like that) is the 19th century (but very beginning).
You seriously believe that it can go about 17-18?
Thank you!