Circa

Circa is Latin for "around" or "about". It is often used to show when something approximately happened. It is often shortened to c., ca., ca or cca.

Science

Estimated values of different units may also begin with circa in research reports and scientific articles, for example, "it involved c. 450 kg of carved ivory". The c. means that it was an estimated value based on an average value or any other coefficient that the researcher will generally define in the methodology.
Encyclopedia
An encyclopedia entry may begin with circa in the date of birth. For instance, Genghis Khan (c. 1162 – August 18, 1227 AD). The c. means that he was born in about 1162, but the exact date is not certain. Sometimes the circa symbol is italicized to show that it is not in the English language.

Related pages

 Vulgar Latin
 Classical Latin
 List of Latin phrases

References

Category:Roman Empire
Category:Latin phrases
Category:English language
Category:Latin words used in English