auc

1. from the founding of the city (of Rome in 753? b.c.). The year 360 A.U.C. would be the 360th year after the founding of Rome.

1. in the year from the founding of the city (of Rome in 753? b.c.).

abbreviation for (indicating years numbered from the founding of Rome, taken as 753 bc)

1. 1. ab urbe condita
   2. anno urbis conditae