The original tradition is that Æneas had first lived for three years in a small town called Troy; then, that taking a higher flight, he had founded Lavinium, and thirty years afterwards Alba; and that the three hundredth year after Alba, was that of the building of Rome. This regular progression of the numbers betokens a field which is not that of history. Three thousand years also were certainly fixed as the duration of Rome. There are two different numerical systems in these legends:--the Etruscan with a sæculum of a hundred and ten years, and the Greek, or the Tyrrhenian, in which the sæculum consisted of thirty years. This number thirty had at all times considerable weight on account of the period of the revolution of Saturn, which according to the then existing opinion, as Servius records, was completed within thirty years. Thirty common years constituted among the Greeks a Saturnian, and a hundred Saturnians a grand year. With this the scale of numbers from the foundation of Lavinium to the building of Rome is connected. The earliest Alban history is a nonentity, as the sagacious Dodwell (de Cyclis, diss. X.) has already shown, who indeed on other occasions only too often spoils by his subtleties what he has well begun. The chronology of the Alban-kings in Dionysius, for instance, is mere absurdity and forgery, the names of them being patched together in every possible way. This forgery, as we see from Servius, was committed in a later age by a freedman of Sylla, L. Cornelius Alexander of Miletus, who readily found acceptance at a period when people were glad to have histories of those times of which nothing could be known.