A.D.

Common Era's predecessor

A.D. stands for Anno Domini, Latin for "in the year of the Lord," marking years after the traditionally calculated birth of Jesus Christ.

It follows the year number: The Roman Empire fell in A.D. 476.

The secular alternative C.E. (Common Era) is increasingly used in academic contexts.

Opposite of B.C.

Also written AD.

dating

BC

Pre-Christian year marker

  • BCESecular historical era notation
  • CEPost-BC time marker
  • B.C.Pre-Christian year notation

anno Domini · year · century · decade · millennium · epoch · era · calendar · Gregorian · Julian

Christian

Christianity

Faith based on Jesus

church · New Testament · gospels · apostles · resurrection · crucifixion · Roman Empire · Constantine · conversion · saints

medieval

feudalism

Land-for-service social structure

monasteries · chivalry · serfs · vassals · guilds · manor · heraldry · jousting · tapestries · fiefdom

Opposites
calendar era designation

A.D.B.C.

Pre-Christian year notation

BC · B.C.E. · BCE · before Christ

religious vs. secular dating terminology

A.D.C.E.

Secular anno domini alternative

CE · Common Era

Family

AD

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Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G