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
When the city of Mylasa in Caria sent to Publius Crassus, consul in 623, a beam for the construction of a battering-ram different from what he had asked, the chief magistrate of the town was scourged for it; and Crassus was not a bad man, and a strictly upright magistrate. On the other hand sternness was wanting in those cases where it would have been in place, as in dealing with the barbarians on the frontiers and with the pirates. When the central government renounced all superintendence and all oversight of provincial affairs, it entirely abandoned not only the interests of the subjects, but also those of the state, to the governor of the day.
The events which occurred in Spain, unimportant in themselves, are instructive in this respect. In that country, where the government was less able than in other provinces to confine itself to the part of a mere onlooker, the law of nations was directly trampled under foot by the Roman governors; and the honour of Rome was permanently dragged in the mire by a faithlessness and treachery without parallel, by the most wanton trifling with capitulations and treaties, by massacring people who had submitted and instigating the assassination of the generals of the enemy.
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Reference address : https://www.ellopos.net/elpenor/rome/4-01-gracchi.asp?pg=118