Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Territory on the Anio - Alba
The Latin communities situated on the upper Tiber and between the Tiber and the Anio-Antemnae, Crustumerium, Ficulnea, Medullia, Caenina, Corniculum, Cameria, Collatia,--were those which pressed most closely and sorely on Rome, and they appear to have forfeited their independence in very early times to the arms of the Romans. The only community that subsequently appears as independent in this district was Nomentum; which perhaps saved its freedom by alliance with Rome.
The possession of Fidenae, the -tete de pont- of the Etruscans on the left bank of the Tiber, was contested between the Latins and the Etruscans--in other words, between the Romans and Veientes--with varying results. The struggle with Gabii, which held the plain between the Anio and the Alban hills, was for a long period equally balanced: down to late times the Gabine dress was deemed synonymous with that of war, and Gabine ground the prototype of hostile soil.(2)
2. The formulae of accursing for Gabii and Fidenae are quite as characteristic (Macrob. Sat. iii. 9). It cannot, however, be proved and is extremely improbable that, as respects these towns, there was an actual historical accursing of the ground on which they were built, such as really took place at Veii, Carthage, and Fregellae. It may be conjectured that old accursing formularies were applied to those two hated towns, and were considered by later antiquaries as historical documents.
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Reference address : https://www.ellopos.net/elpenor/rome/1-07-hegemony-rome-latium.asp?pg=2