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
The burdensome and
partly unfortunate wars, and the exorbitant taxes and task-works to
which these gave rise, filled up the measure of calamity, so as either
to deprive the possessor directly of his farm and to make him the
bondsman if not the slave of his creditor-lord, or to reduce him
through encumbrances practically to the condition of a temporary
lessee of his creditor.
The capitalists, to whom a new field was
here opened of lucrative speculation unattended by trouble or risk,
sometimes augmented in this way their landed property; sometimes they
left to the farmer, whose person and estate the law of debt placed in
their hands, nominal proprietorship and actual possession. The latter
course was probably the most common as well as the most pernicious;
for while utter ruin might thereby be averted from the individual,
this precarious position of the farmer, dependent at all times on the
mercy of his creditor--a position in which he knew nothing of property
but its burdens--threatened to demoralise and politically to
annihilate the whole farmer-class.