necessity for the purpose of authenticating the order of succession of official documents.  But, if there was an official register of the consuls so old, it probably perished in the Gallic conflagration (364); and the list of the pontifical college was subsequently completed from the Capitoline register which was not affected by that catastrophe, so far as this latter reached back.  That the list of presidents which we now have —­although in collateral matters, and especially in genealogical statements, it has been supplemented at pleasure from the family pedigrees of the nobility—­is in substance based from the beginning on contemporary and credible records, admits of no doubt.  But it reproduces the calendar years only imperfectly and approximately:  for the consuls did not enter on office with the new year, or even on a definite day fixed once for all; on the contrary from various causes the day of entering on office was fluctuating, and the -interregna-that frequently occurred between two consulates were entirely omitted in the reckoning by official years.  Accordingly, if the calendar years were to be reckoned by this list of consuls, it was necessary to note the days of entering on and of demitting office in the case of each pair, along with such -interregna- as occurred; and this too may have been early done.  But besides this, the list of the annual magistrates was adjusted to the list of calendar years in such a way that a pair of magistrates were by accommodation assigned to each calendar year, and, where the list did not suffice, intercalary years were inserted, which are denoted in the later (Varronian) table by the figures 379, 383, 421, 430, 445, 453.  From 291 u. c. (463 B. C.) the Roman list demonstrably coincides, not indeed in detail but yet on the whole, with the Roman calendar, and is thus chronologically certain, so far as the defectiveness of the calendar itself allows.  The 47 years preceding that date cannot be checked, but must likewise be at least in the main correct.(12) Whatever lies beyond 245 remains, chronologically, in oblivion.

Capitoline Era

No era was formed for ordinary use; but in ritual matters they reckoned from the year of the consecration of the temple of the Capitoline Jupiter, from which the list of magistrates also started.

Annals

The idea naturally suggested itself that, along with the names of the magistrates, the most important events occurring under their magistracy might be noted; and from such notices appended to the catalogue of magistrates the Roman annals arose, just as the chronicles of the middle ages arose out of the memoranda marginally appended to the table of Easter.  But it was not until a late period that the pontifices formed the scheme of a formal chronicle (-liber annalis-), which should steadily year by year record the names of all the magistrates and the remarkable events.  Before the eclipse of the sun noticed under the 5th of June