argues that the multiple scheme is evidence that the fasti were Augustan rather than republican. The kings are given precedence at the top and the AUC at the left as though they were superimposed on a formerly republican fasti. Moreover, the 5-year lustra date to 28 BC when the temple of Mars Ultor ("Mars the Avenger"), the imperial god, was constructed and took precedence over the temple of Jupiter on the Capitoline. After that time the emperor must be one of the censors, who now presided over banging in the yearly nail at Mars Ultor instead of Jupiter (the setting of this nail marked the transition of the year). Dating The republican dates given to the right are those of the Varronian chronology; that is, those calculated by the scholar, Marcus Terentius Varro. His republic begins in the year 510/509 BC by modern calculation. These were the official imperial dates. Many other dates and chronologies existed, notably those of Livy, with which the emperor must have been familiar, but he did not forbid their use in unofficial contexts. The AUC chronology does not exactly correspond; it is later than the Varronian by a year. Censorinus, who went over Varro's calculations, he says, explains that Ulpius and Pontianus were consuls in the 1014th year from the re-founding of the Olympic games (776 BC); that is, Olympiad 254.2 (second year of the 254th Olympiad) and that this year was AUC 991, starting by modern calculations January 1, 238 AD. Varro's AUC 1 therefore was 754/753 BC. The further identifications of Ulpius and Pontianus remain a mystery, as they are only named by Censorinus, but the names are irrelevant to the argument. The republic began in Varro's view in . Solinus observed that Gaius Pompeius Gallus and Quintus Verranius were consuls in Olympiad 207.1, and that this year was 801 AUC, counting from the foundation of Rome at Olympiad 7.1. By modern calculation this is 49 AD. He was relying on the official dating scheme, which must have been the fasti consulares. In Varro's chronology this is AUC 802. Simple subtraction shows that AUC 1 in Augustus' fasti is 753/752 BC. The fasti give to the start of the republic a date of , but some editors "correct" all the AUC to Varronian. Similarly the fasti run to the death of Augustus in 13 AD (14 in the Varronian). This is not a