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
War with Allobroges and Arverni
The attack of Flaccus, however, fell in the first instance not on the Arverni, but on the smaller tribes in the district between the Alps and the Rhone, where the original Ligurian inhabitants had become mixed with subsequent arrivals of Celtic bands, and there had arisen a Celto-Ligurian population that may in this respect be compared to the Celtiberian.
He fought (629, 630) with success against the Salyes or Salluvii in the region of Aix and in the valley of the Durance, and against their northern neighbours the Vocontii (in the departments of Vaucluse and Drome); and so did his successor Gaius Sextius Calvinus (631, 632) against the Allobroges, a powerful Celtic clan in the rich valley of the Isere, which had come at the request of the fugitive king of the Salyes, Tutomotulus, to help him to reconquer his land, but was defeated in the district of Aix.
When the Allobroges nevertheless refused to surrender the king of the Salyes, Gnaeus Domitius Ahenobarbus, the successor of Calvinus, penetrated into their own territory (632). Up to this period the leading Celtic tribe had been spectators of the encroachments of their Italian neighbours; the Arvernian king Betuitus, son of the Luerius already mentioned, seemed not much inclined to enter on a dangerous war for the sake of the loose relation of clientship in which the eastern cantons might stand to him.
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