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
But the Latin and Greek nationalities continued to be exclusively the positive elements of the new citizenship. The distinctively Italian state of the republic was thus at an end; but the rumour that Caesar was ruining Italy and Rome on purpose to transfer the centre of the empire to the Greek east and to make Ilion or Alexandria its capital, was nothing but a piece of talk-- very easy to be accounted for, but also very silly--of the angry nobility. On the contrary in Caesar's organizations the Latin nationality always retained the preponderance; as is indicated in the very fact that he issued all his enactments in Latin, although those destined for the Greek-speaking countries were at the same time issued in Greek.
In general he arranged the relations of the two great nations in his monarchy just as his republican predecessors had arranged them in the united Italy; the Greek nationality was protected where it existed, the Italian was extended as far as circumstances permitted, and the inheritance of the races to be absorbed was destined for it. This was necessary, because an entire equalizing of the Greek and Latin elements in the state would in all probability have in a very short time occasioned that catastrophe which Byzantinism brought about several centuries later; for the Greek element was superior to the Roman not merely in all intellectual aspects, but also in the measure of its predominance, and it had within Italy itself in the hosts of Greeks and half-Greeks who migrated compulsorily or voluntarily to Italy an endless number of apostles apparently insignificant, but whose influence could not be estimated too highly.
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Reference address : https://www.ellopos.net/elpenor/rome/5-11-old-republic-new-monarchy.asp?pg=152