Whens'at?
CE = Common Era.
Seems that BC and AD are no longer used by religious scholars because their meanings are too religious.
As a historian, it is a pain in the butt because all my papers have to say BCE/CE but I still use BC and AD in speaking.
Qumran ping.
"Common Era" (CE) = AD, "Before the Common Era" (BCE) = BC. Even 10-15 yrs ago it was in use in Catholic high schools.
Before that, I'd never encountered such a ridiculous thing.