Circa

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Circa (from Latin , meaning 'around, about, roughly, approximately') – frequently abbreviated ca. or c. and less frequently circ. or cca. – signifies "approximately" in several European languages and as a loanword in English, usually in reference to a date. [1] Circa is widely used in historical writing when the dates of events are not accurately known.

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When used in date ranges, circa is applied before each approximate date, while dates without circa immediately preceding them are generally assumed to be known with certainty.

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References

  1. "circa". Dictionary.com . Retrieved 16 July 2010.