Anno Domini

Anno Domini (Medieval Latin : “in the year of the Lord”), shortened as AD or A.D., is used to refer to the years after the birth of Jesus. AD is also a shorthand for Christian Era.^[1] Likewise, Before Christ, shortened as BC or B.C., is used in English to refer to all years before our present time (AD or A.D.).

1. ↑ Abate, Oxford Pocket Dictionary and Thesaurus, s.v. "A.D."