In manifest connection with this crisis in the relations between Rome and Latium stands the closing of the Latin confederation[14], which took place about the year 370, although we cannot precisely determine whether it was the effect or, as is more probable, the cause of the revolt of Latium against Rome which we have just described. As the law had hitherto stood, every sovereign city founded by Rome and Latium took its place among the communes entitled to participate in the federal festival and federal diet, whereas every community incorporated with another city and thereby politically annihilated was erased from the ranks of the members of the league. At the same time, however, according to Latin use and wont the number once fixed of thirty confederate communities was so adhered to, that of the participating cities never more and never less than thirty were entitled to vote, and a number of the communities that were of later admission, or were disqualified for their slight importance or for the crimes they had committed, were without the right of voting. In this way the confederacy was constituted about 370 as follows. Of old Latin townships there were - besides some which have now fallen into oblivion, or whose sites are unknown - still autonomous and entitled to vote, Nomentum, between the Tiber and the Anio; Tibur, Gabii, Scaptia, Labici[15], Pedum, and Praeneste, between the Anio and the Alban range; Corbio, Tusculum, Bovillae, Aricia, Corioli, and Lanuvium on the Alban range; Cora in the Volscian mountains, and lastly, Laurentum in the plain along the coast. To these fell to be added the colonies instituted by Rome and the Latin league; Ardea in the former territory of the Rutuli, and Satricum, Velitrae, Norba, Signia, Setia and Circeii in that of the Volsci. Besides, seventeen other townships, whose names are not known with certainty, had the privilege of participating in the Latin festival without the right of voting. On this footing - of forty-seven townships entitled to participate and thirty entitled to vote - the Latin confederacy continued henceforward unalterably fixed. The Latin communities founded subsequently, such as Sutrium, Nepete[16], Antium, Tarracina[17], and Gales, were not admitted into the confederacy, nor were the Latin communities subsequently divested of their autonomy, such as Tusculum and Lanuvium, erased from the list.
With this closing of the confederacy was connected the geographical settlement of the limits of Latium. So long as the Latin confederacy continued open, the bounds of Latium had advanced with the establishment of new federal cities: but as the later Latin colonies had no share in the Alban festival, they were not regarded geographically as part of Latium. For this reason doubtless Ardea and Circeii were reckoned as belonging to Latium, but not Sutrium or Tarracina.
Isolation of the Later Latin Cities as Respected Private Rights But not only were the places on which Latin privileges were bestowed after 370 kept aloof from the federal association; they were isolated also from one another as respected private rights. While each of them was allowed to have reciprocity of commercial dealings and probably also of marriage (
If hitherto considerable freedom of movement had been allowed within the confederacy, and for example the six old Latin communities, Aricia, Tusculum, Tibur, Lanuvium, Cora, and Laurentum, and the two new Latin, Ardea and Suessa Pometia, had been permitted to found in common a shrine for the Aricine Diana; it is doubtless not the mere result of accident that we find no further instance in later times of similar separate confederations fraught with danger to the hegemony of Rome.