The term
anno Domini is
Medieval Latin, which means
in the year of the Lord but is often translated as
in the year of our Lord. It is occasionally set out more fully as
anno Domini nostri Iesu (or
Jesu)
Christi ("in the year of Our Lord Jesus Christ"). The terms (
AD or
A.D.) and
before Christ (
BC or
B.C.) are used to label or number years in the
Julian and
Gregorian calendars.