Question

what calendars were called at 18th century?​

Answer 1

Answer:

I think calendars were called ballad

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Answer 2

Answer:This article is about the 18th-century changes in calendar conventions used by Great Britain and its colonies, together with a brief explanation of usage of the term in other contexts.Old Style (O.S.) and New Style (N.S.) are terms sometimes used with dates to indicate that the calendar convention used at the time described is different from that in use at the time the document was being written.

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