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


*1732–1799: Both years are known precisely. *c. 1732 – 1799: The beginning year is approximate; the end year is known precisely. *1732 – c. 1799: The beginning year is known precisely; the end year is approximate. *c. 1732 – c. 1799: Both years are approximate.

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* * {{Chronology|state=uncollapsed Category:Genealogy Category:Latin words and phrases Category:Date and time representation