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
It is a remarkable circumstance that in the oldest tombs of Caere, besides native vessels of bronze and silver, there have been found chiefly Oriental articles, which may certainly have come from Greek merchants, but more probably were introduced by Phoenician traders. We must not, however, attribute too great importance to this Phoenician trade, and in particular we must not overlook the fact that the alphabet, as well as the other influences that stimulated and matured native culture, were brought to Etruria by the Greeks, and not by the Phoenicians.
Latin commerce assumed a different direction. Rarely as we have opportunity of instituting comparisons between the Romans and the Etruscans as regards the reception of Greek elements, the cases in which such comparisons can be instituted exhibit the two nations as completely independent of each other. This is most clearly apparent in the case of the alphabet.
The Greek alphabet brought to the Etruscans from the Chalcidico-Doric colonies in Sicily or Campania varies not immaterially from that which the Latins derived from the same quarter, so that, although both peoples have drawn from the same source, they have done so at different times and different places.
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Reference address : https://www.ellopos.net/elpenor/rome/1-13-agriculture-trade-commerce.asp?pg=30