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
A more important consequence of this attitude of the ruling nation towards Hellenism was, that the process of Latinizing gained ground everywhere in Italy except where it encountered the Greeks. The cities of the Greeks in Italy, so far as the war had not destroyed them, remained Greek. Apulia, about which, it is true, the Romans gave themselves little concern, appears at this very epoch to have been thoroughly pervaded by Hellenism, and the local civilization there seems to have attained the level of the decaying Greek culture by its side.
Tradition is silent on the matter; but the numerous coins of cities, uniformly furnished with Greek inscriptions, and the manufacture of painted clay-vases after the Greek style, which was carried on in that part of Italy alone with more ambition and gaudiness than taste, show that Apulia had completely adopted Greek habits and Greek art.
But the real struggle between Hellenism and its national antagonists during the present period was carried on in the field of faith, of manners, and of art and literature; and we must not omit to attempt some delineation of this great strife of principles, however difficult it may be to present a summary view of the myriad forms and aspects which the conflict assumed.
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Reference address : https://www.ellopos.net/elpenor/rome/3-13-faith-manners.asp?pg=9