E.V. - gregorian calender

an interesting bit on "Era Vulgaris" from Frater J. Standley 777, EPL brethren since 2006.

What does the "e.v." I see after dates in Thelemic writings mean?

Thelema has its own calendar, but at present it is used largely for ceremonial purposes. In common with many religions, for many practical purposes we use the Gregorian calendar instead. In Christian practice, the years after the traditional birth of Christ are identified as "A.D.,” or "Anno Domini,” which means "Year of Our Lord." Scholars wishing to use the Gregorian calendar without that sectarian attribution adopted the practice of using "C.E.," short for "Common Era," instead. Some used the Latin equivalent, which is "E.V." ("Era Vulgaris"). Crowley established the tradition of using the latter form when referring to Gregorian dates in Thelemic materials, and this tradition has been maintained into the present day.