Ab urbe condita
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"Ab Urbe condita" (related with Anno Urbis conditae: AUC or a.u.c.) is Latin for "from the founding of the City (Rome)", [Literally translated as "From the city having been founded".] traditionally set in 753 BC. It was used to identify the Roman year by a few Roman historians. Modern historians use it much more frequently than the Romans themselves did; the dominant method of identifying Roman years was to name the two consuls who held office that year. Before the advent of the modern critical edition of historical Roman works, AUC was indiscriminately added to them by earlier editors, making it appear more widely used than it actually was.Fact|date=July 2008 The regnal year of the emperor was also used to identify years, especially in the Byzantine Empire after Justinian required its use in 537. Examples of usage are principally found in German authors, for example Mommsen's "History of Rome". ignificance From Emperor Claudius onwards, Varr...