Question

What does BCE, AD, BC, and circa mean?

Answer 1

Before Common Era, After death, Before Christ, and circa, often abbreviated just c. signifies an approximation so "c. 1000 BC" would mean approximately 1000 Before Christ.

Answer 2

BCE= Before Common Era

BC= Before Christ

CIRCA= Approximately

AD= Anno Domini

AD stands confusingly for a Latin phrase

Circa is used in genealogy and historical writing when the dates of events are not precisely known