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
Elevation of Agriculture
Hand in hand with these efforts to guard against the ascendency of capital went the endeavours to bring back agriculture to the path which was most advantageous for the commonwealth. For this purpose the improvement of the administration of justice and of police was very essential. While hitherto nobody in Italy had been sure of his life and of his moveable or immoveable property, while Roman condottieri for instance, at the intervals when their gangs were not helping to manage the politics of the capital, applied themselves to robbery in the forests of Etruria or rounded off the country estates of their paymasters by fresh acquisitions, this sort of club-law was now at an end; and in particular the agricultural population of all classes must have felt the beneficial effects of the change.
The plans of Caesar for great works also, which were not at all limited to the capital, were intended to tell in this respect; the construction, for instance, of a convenient high-road from Rome through the passesof the Apennines to the Adriatic was designed to stimulate the internal traffic of Italy, and the lowering the level of the Fucine lake to benefit the Marsian farmers. But Caesar also sought by more direct measures to influence the state of Italian husbandry. The Italian graziers were required to take at least a third of their herdsmen from freeborn adults, whereby brigandage was checked and at the same time a source of gain was opened to the free proletariate.
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Reference address : https://www.ellopos.net/elpenor/rome/5-11-old-republic-new-monarchy.asp?pg=131