Dionysius of Halicarnassus, Roman Antiquities 1.74
 As to the last settlement or founding of the city, or whatever we ought to call it, Timaeus of Sicily, following what principle I do not know, places it at the same time as the founding of Carthage, that is, in the thirty-eighth year before the first Olympiad; Lucius Cincius, a member of the senate, places it about the fourth year of the twelfth Olympiad, and Quintus Fabius in the first year of the eighth Olympiad. 2 Porcius Cato does not give the time according to Greek reckoning, but being as careful as any writer in gathering the date of ancient history, he places its founding four hundred and thirty-two years after the Trojan war; and this time, being compared with the Chronicles of Eratosthenes, corresponds to the first year of the seventh Olympiad. That the canons of Eratosthenes are sound I have shown in another treatise, where I have also shown how the Roman chronology is to be synchronized with that of the Greeks. 3 For I did not think it sufficient, like Polybius of Megalopolis, to say merely that I believe Rome was built in the second year of the seventh Olympiad, nor to let my belief rest without further examination upon the single tablet preserved by the high priests, the only one of its kind, but I determined to set forth the reasons that had appealed to me, so that all might examine them who so desired. 4 In that treatise, therefore, the detailed exposition is given; but in the course of the present work also the most essential of the conclusions there reached will be mentioned. The matter stands thus: It is generally agreed that the invasion of the Gauls, during which the city of Rome was taken, happened during the archonship of Pyrgion at Athens, in the first year of the ninety-eighth Olympiad. Now if the time before the taking of the city is reckoned back to Lucius Junius Brutus and Lucius Tarquinius Collatinus, the first consuls at Rome after the overthrow of the kings, it comprehends one hundred and twenty years. 5 This is proved in many other ways, but particularly by the records of the censors, which receives in succession from the father and takes great care to transmit to posterity, like family rites; and there are many illustrious men of censorian families who preserve these records. In them I find that in the second year before the taking of the city there was a census of the Roman people, to which, as to the rest of them, there is affixed the date, as follows: "In the consulship of Lucius Valerius Potitus and Titus Manlius Capitolinus, in the one hundred and nineteenth year after the expulsion of the kings." 6 So that the Gallic invasion, which we find to have occurred in the second year after the census, happened when the hundred and twenty years were completed. If, now, this interval of time is found to consist of thirty Olympiads, it must be allowed that the first consuls to be chosen entered upon their magistracy in the first year of the sixty-eighth Olympiad, the same year that Isagoras was archon at Athens.
דיוניסיוס מהאליקרנאסוס מציין קנסוס שנערך בעת כהונתם של הקונסולים של שנת 389 או 388 BC, מנליוס קאפיטולינוס (T. Manlius Capitolinus) וואלריוס פוטיטוס (L. Valerius Potitus) כ-119 שנים אחרי גירוש המלכים, שהתרחש אם כן ב-בשנת 508 או 507 BC.