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
Comparison between Carthage and Rome In Their Economy
Let us now compare the respective resources of Carthage and Rome. Both were agricultural and mercantile cities, and nothing more; art and science had substantially the same altogether subordinate and altogether practical position in both, except that in this respect Carthage had made greater progress than Rome.
But in Carthage the moneyed interest preponderated over the landed, in Rome at this time the landed still preponderated over the moneyed; and, while the agriculturists of Carthage were universally large landlords and slave-holders, in the Rome of this period the great mass of the burgesses still tilled their fields in person. The majority of the population in Rome held property, and was therefore conservative; the majority in Carthage held no property, and was therefore accessible to the gold of the rich as well as to the cry of the democrats for reform.
In Carthage there already prevailed all that opulence which marks powerful commercial cities, while the manners and police of Rome still maintained at least externally the severity and frugality of the olden times. When the ambassadors of Carthage returned from Rome, they told their colleagues that the relations of intimacy among the Roman senators surpassed all conception; that a single set of silver plate sufficed for the whole senate, and had reappeared in every house to which the envoys had been invited. The sneer is a significant token of the difference in the economic conditions on either side.
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Reference address : http://www.ellopos.net/elpenor/rome/3-01-carthage.asp?pg=37