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
Management of Money
We are prevented from giving a similar comprehensive view of the moneyed economy of Rome, partly by the want of special treatises descending from Roman antiquity on the subject, partly by its very nature which was far more complex and varied than that of the Roman husbandry. So far as can be ascertained, its principles were, still less perhaps than those of husbandry, the peculiar property of the Romans; on the contrary, they were the common heritage of all ancient civilization, under which, as under that of modern times, the operations on a great scale naturally were everywhere much alike.
In money matters especially the mercantile system appears to have been established in the first instance by the Greeks, and to have been simply adopted by the Romans. Yet the precision with which it was carried out and the magnitude of the scale on which its operations were conducted were so peculiarly Roman, that the spirit of the Roman economy and its grandeur whether for good or evil are pre-eminently conspicuous in its monetary transactions.
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Reference address : https://www.ellopos.net/elpenor/rome/3-12-management-land-capital.asp?pg=24