Ante Christum Natum, usually abbreviated to A.C.N., a.C.n., or ACN, Latin for Before the Birth of Christ, denotes the years before the birth of Jesus Christ. It is hence equivalent to the far more common B.C. (Before Christ) and B.C.E. (Before Common Era). Latin is the language originally spoken in the region around Rome called Latium. ... Wikipedia does not yet have an article with this exact name. ... Anno Domini (Latin: In the year of the Lord), or more completely Anno Domini Nostri Iesu Christi (in the year of our Lord Jesus Christ), commonly abbreviated AD or A.D., is the designation used to number years in the dominant Christian Era in the world today. ...
The phrase Ante Christum Natum is commonly seen as the shorter Ante Christum (Latin for Before Christ), again usually abbreviated to A.C. or AC.
AnteChristum Natum (Latin for Before Christ (was) Born), usually abbreviated to A.C.N. a.C.n.
The phrase AnteChristum Natum is also seen as the shorter AnteChristum (Latin for Before Christ), again usually abbreviated to A.C. or AC.
Bede, who was the first writer to identify a year as before Christ, used the Latinante incarnationis dominicae tempus (before the time of the Incarnation of the Lord) in his Historia ecclesiastica gentis Anglorum (I.2) in 731.
anno anteChristum natum AA.C.N. /a.a.C.n./ anno anteChristum natum Aa.C.N. anno a Christi natali /nativitate/ A.AE.C. anno aerae Christianae /Christi/ a.ae.c.
actum in senatu A.K. ante Kalendas A.L. anno lucis; 2.
anno salutis Christianae An.S.H. anno salutis humanae AN.S.N. anno salutis nostrae A.S.S. anno suprascripto Ant.