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
Casting in copper occupied no inferior place. Etruscan artists ventured to make colossal statues of bronze fifty feet in height, and Volsinii, the Etruscan Delphi, was said to have possessed about the year 489 two thousand bronze statues. Sculpture in stone, again, began in Etruria, as probably everywhere, at a far later date, and was prevented from development not only by internal causes, but also by the want of suitable material; the marble quarries of Luna (Carrara) were not yet opened.
Any one who has seen the rich and elegant gold decorations of the south-Etruscan tombs, will have no difficulty in believing the statement that Tyrrhene gold cups were valued even in Attica. Gem-engraving also, although more recent, was in various forms practised in Etruria.
Equally dependent on the Greeks, but otherwise quite on a level with the workers in the plastic arts, were the Etruscan designers and painters, who manifested extraordinary activity both in outline-drawing on metal and in monochromatic fresco-painting.
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Reference address : https://www.ellopos.net/elpenor/rome/2-09-art-science.asp?pg=41