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
Subjugation of Campania As Far As Nola - Sulla in Samnium
The Roman southern army, which was now under the command of Lucius Sulla, had at the same time assumed the offensive and had penetrated into southern Campania which was occupied by the enemy. Stabiae was taken and destroyed by Sulla in person (30 April 665) and Herculaneum by Titus Didius, who however fell himself (11 June) apparently at the assault on that city. Pompeii resisted longer.
The Samnite general Lucius Cluentius came up to bring relief to the town, but he was repulsed by Sulla; and when, reinforced by bands of Celts, he renewed his attempt, he was, chiefly owing to the wavering of these untrustworthy associates, so totally defeated that his camp was taken and he himself was cut down with the greater part of his troops on their flight towards Nola. The grateful Roman army conferred on its general the grass-wreath--the homely badge with which the usage of the camp decorated the soldier who had by his capacity saved a division of his comrades.
Without pausing to undertake the siege of Nola and of the other Campanian towns still occupied by the Samnites, Sulla at once advanced into the interior, which was the head-quarters of the insurrection. The speedy capture and fearful punishment of Aeclanum spread terror throughout the Hirpinian country; it submitted even before the arrival of the Lucanian contingent which had set itself in motion to render help, and Sulla was able to advance unhindered as far as the territory of the Samnite confederacy.
The pass, where the Samnite militia under Mutilus awaited him, was turned, the Samnite army was attacked in rear, and defeated; the camp was lost, the general escaped wounded to Aesernia. Sulla advanced to Bovianum, the capital of the Samnite country, and compelled it to surrender by a second victory achieved beneath its walls. The advanced season alone put an end to the campaign there.
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Reference address : https://www.ellopos.net/elpenor/rome/4-07-sulpician-revolution.asp?pg=47