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
In architecture, plastic art, and embossing, the same stimulants acted on Etruria and on Latium, but it was only in the case of the former that capital was everywhere brought to bear on them and led to their being pursued extensively and with growing technical skill.
The commodities were upon the whole the same, which were bought, sold, and manufactured in Latium and in Etruria; but the southern land was far inferior to its northern neighbours in the energy with which its commerce was plied.
The contrast between them in this respect is shown in the fact that the articles of luxury manufactured after Greek models in Etruria found a market in Latium, particularly at Praeneste, and even in Greece itself, while Latium hardly ever exported anything of the kind.
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Reference address : https://www.ellopos.net/elpenor/rome/1-13-agriculture-trade-commerce.asp?pg=28