"Ca." and "Cca." redirect here. For other uses of "Ca", see CA. For other uses of "Cca", see CCA.
Circa (fromLatin, meaning 'around, about') – frequently abbreviated c., ca., or ca, and less frequently circ. or cca. – signifies "approximately" in several European languages and 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.