In Latium too, during the first century and a half of the republic, it is probable that they moved solely in the previous track, and it has already been stated that the exercise of art rather sank than rose with the introduction of the republic[32]
. There can scarcely be named any Latin building of architectural importance belonging to this period, except the temple of Ceres built in the Circus at Rome in 261, which was regarded in the period of the empire as a model of the Tuscanic style. But towards the close of this epoch a new spirit appeared in Italian and particularly in Roman architecture[33]; the building of the magnificent arches began. It is true that we are not entitled to pronounce the arch and the vault Italian inventions. It is well ascertained that at the epoch of the genesis of Hellenic architecture the Hellenes were not yet acquainted with the arch, and therefore had to content themselves with a flat ceiling and a sloping roof for their temples; but the arch may very well have been a later invention of the Hellenes originating in more scientific mechanics; as indeed the Greek tradition refers it to the natural philosopher Democritus (294-397). With this priority of Hellenic over Roman arch-building the hypothesis, which has been often and perhaps justly propounded, is quite compatible, that the vaulted roof of the Roman great