Changes

Circa is when a date or time is unknown.

Circa is when a date or time is unknown, circa is mostly used in birth dates.

== Examples ==

== Examples ==

*c. 1555

*c. 1244

* c. 1555 - 1608 (death year known precisely)

* c. 1244 - 1329 (death year known precisely)

*c. 1555 - c. 1608 (both years not known

*c. 1244 - c. 1316 (both years not known)