We may probably assign to the same period the already mentioned(10) treaty between Rome and Tarentum, respecting the date of which we are only told that it was concluded a considerable time before 472. By it the Romans bound themselves—for what concessions on the part of Tarentum is not stated—not to navigate the waters to the east of the Lacinian promontory; a stipulation by which they were thus wholly excluded from the eastern basin of the Mediterranean.
Roman Fortification of the Coast
These were disasters no less than the defeat on the Allia, and the Roman senate seems to have felt them as such and to have made use of the favourable turn, which the Italian relations assumed soon after the conclusion of the humiliating treaties with Carthage and Tarentum, with all energy to improve its depressed maritime position. The most important of the coast towns were furnished with Roman colonies: Pyrgi the seaport of Caere, the colonization of which probably falls within this period; along the west coast, Antium in 415,(11) Tarracina in 425,(12) the island of Pontia in 441,(13) so that, as Ardea and Circeii had previously received colonists, all the Latin seaports of consequence in the territory of the Rutuli and Volsci had now become Latin or burgess colonies; further, in the territory of the Aurunci, Minturnae and Sinuessa in 459;(14) in that of the Lucanians, Paestum and Cosa in 481;(15) and, on the coast of the Adriatic, Sena Gallica and Castrum Novum about 471,(16) and Ariminum in 486;(17) to which falls to