A.U.C. Look up A.U.C. at Dictionary.com
as an abbreviation in Roman history in reckoning of dates it represent either ab urbe condita (q.v.) "from the founding of the city" or Anno Urbis Conditae "in the year of the founded city," from ablative of annus "year" (see annual (adj.)) + genitive of urbs "city" (see urban) + genitive of condita, fem. of conditus, past participle of condere "to set up, put together" (see abscond)