We know from the Roman historians that a large force of Gauls came as far south as Rome in the year 390 B.C., and that some part of this horde settled in what was henceforward known as the Ager Gallicus, the easterdmost strip of coast in what was later known as Umbria, including the towns of Caesna, Ravenna and -Ariminum.
The priests were the Arval Brothers, who conducted the victims - ox, sheep and pig (suovetaurilia) - in procession with prayer to Ceres round the boundaries of the ager Romanus.
For centuries there had been a dispute between Messenia and Sparta about the possession of the Ager Dentheliates on the western slope of Taygetus: after various decisions by Philip of Macedon, Antigonus, Mummius, Caesar, Antony, Augustus and others, the question was settled in A.D.
This tribe, called Bruttii and Brittii in Latin inscriptions, and Bpirrtot on Greek coins and by Greek authors, occupied the south-western peninsula of Italy in historical times, the ager Bruttius (wrongly called Bruttium) corresponding almost exactly to the modern Calabria.
Allen thought that folkland was similar to the Roman ager publicus: it was the common property of the nation (folc), and the king had to dispose of it by carving out dependent tenures for his followers more or less after the fashion of continental beneficia.
Laurentum was also accessible by a branch from the Via Ostiensis at the eighth mile (at Malafede) leading past Castel Porziano, the royal hunting-lodge, which is identical with the ancient Ager Solonius (in which, Festus tells us, was situated the Pomonal or sacred grove of Pomona) and which later belonged to Marius.
The opposition between ager Romanus and ager Gabinus in the augural law.
The boundary of the Ager Romanus antiquus towards the north-west is similarly fixed by the festival of the Robigalia at the 5th milestone of the Via Clodia.
The sixth region was formed by Umbria, in the more extended sense of the term, as including the Ager Gallicus, along the coast of the Adriatic from the Aesis to the Ariminus, and separated from Etruria on the west by the Tiber.
Piperno, and the tribus Falerna (in the Ager Falernus), while the foundation of the colonies of Cales (334) and Fregellae (328) secured the newly won south Volscian and Campanian territories and led no doubt to a prolongation of the Via Latina.