The Etruscan princes were also vigorous conquerors, bent on extending their power throughout Latium. Tradition, reported by Livy and Dionysius, dwells long on their wars of conquest with Veii, Latin towns like Gabii, Aricia, Ardea and the Volscians as far as Tarracina. That this tradition happens to be fairly
correct we may conclude from the facts that the region below Velitrae was particularly submitted to agricultural development (Frank, Economic History of Rome, 8 and 35, 2nd ed. 1927), that the colony of Cora existed at the founding of the first Latin league, and that the terms of the first treaty between Carthage and Rome, signed in 509, prove that the principality developed by Tarquin extended as far as Tarracina. This famous treaty re corded by Polybius (III. 22-3) is our oldest genuine document of Roman history. It was signed with the new republic of Rome immediately after the Etruscans had been banished and doubtless to a large extent reiterated the provisions of the previous treaty which the Tarquins had signed when in control of Rome. In the first sections it assumes that the free Romans would continue commerce on the seas to the extent that the Tarquins had, and it therefore makes an effort to safeguard the Punic trade monop oly at Punic ports. That proved to be a needless precaution, for the Romans abandoned the seas soon after they fell out of touch with Etruscan enterprise. A paragraph of the second part of the treaty reveals how far the ambitions of Etruscan Rome had advanced. It reads, "The Carthaginians shall do no injury to the people of Ardea, Antium, Laurentum, Tarracina, nor any other people of the Latins that are subject to Rome. From those townships of Latium which are not subject to Rome they shall hold their hands ; and if they shall take one they shall deliver it unharmed to the Romans." If, as seems to be the case, these clauses remain standing from Tarquin's last treaty with Carthage, they indicate that Tarquin had conquered at least the towns named, and that such towns as Pometia and Satricum, which are not mentioned, are considered within the sphere of Rome's natural interests, so that even if Carthage in some dispute should attack them she must deliver them to Rome. Needless to say the Roman republic which signed this treaty could not long entertain such ambitions, inherited for the time from Tarquin. Rome discovered within a few years that she had to release the Latins from subjection in order to win their support in her struggle with the returning Etruscans.