Wherever a day is just not known specifically, "c. " might be used for "circa". Other examples are given at WP:APPROXDATE, Despite the fact that "fl. " for "floruit" must be avoided as It's not at all universally understood. Centuries should not be abbreviated "c. " as a result of https://tarottelefonico40492.vidublog.com/34276243/considerations-to-know-about-tarot-de-jesus