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
When and how the distribution
of the arable land took place, can no longer be ascertained. This
much only is certain, that the oldest form of the constitution was
based not on freehold settlement, but on clanship as a substitute
for it, whereas the Servian constitution presupposes the distribution
of the land.
It is evident from the same constitution that the
great bulk of the landed property consisted of middle-sized farms,
which provided work and subsistence for a family and admitted of
the keeping of cattle for tillage as well as of the application of
the plough. The ordinary extent of such a Roman full hide has not
been ascertained with precision, but can scarcely, as has already
been shown,(7) be estimated at less than twenty -jugera-(12 1/2
acres nearly).
