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
Little more than a century had elapsed since the Hannibalic war; it must have brought a blush to the cheek of the honourable Roman, when he reflected on the fearfully rapid decline of the nation since that great age. Then the Italian slaves stood like a wall against the veterans of Hannibal; now the Italian militia were scattered like chaff before the bludgeons of their runaway serfs. Then every plain captain acted in case of need as general, and fought often without success, but always with honour; now it was difficult to find among all the officers of rank a leader of even ordinary efficiency.
Then the government preferred to take the last farmer from the plough rather than forgo the acquisition of Spain and Greece; now they were on the eve of again abandoning both regions long since acquired, merely that they might be able to defend themselves against the insurgent slaves at home. Spartacus too as well as Hannibal had traversed Italy with an army from the Po to the Sicilian straits, beaten both consuls, and threatened Rome with blockade; the enterprise which had needed the greatest general of antiquity to conduct it against the Rome of former days could be undertaken against the Rome of the present by a daring captain of banditti. Was there any wonder that no fresh life sprang out of such victories over insurgents and robber-chiefs?
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Reference address : https://www.ellopos.net/elpenor/rome/5-02-rule-sullan-restoration.asp?pg=83