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
Corsica - Sardinia
Wars as they are called, of a similar character with those against the Ligurians, were waged with the Corsicans and to a still greater extent with the inhabitants of the interior of Sardinia, who retaliated for the predatory expeditions directed against them by sudden attacks on the districts along the coast.
The expedition of Tiberius Gracchus against the Sardinians in 577 was specially held in remembrance, not so much because it gave "peace" to the province, as because he asserted that he had slain or captured as many as 80,000 of the islanders, and dragged slaves thence in such multitudes to Rome that "cheap as a Sardinian" became a proverb.
Do you see any typos or other mistakes? Please let us know and correct them
Reference address : https://www.ellopos.net/elpenor/rome/3-07-peace-hannibal-third-period.asp?pg=11