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
Any action at law for higher rates must have
been refused, perhaps even judicial claims for repayment may have been
allowed; moreover notorious usurers were not unfrequently summoned
before the bar of the people and readily condemned by the tribes to
heavy fines. Still more important was the alteration of the procedure
in cases of debt by the Poetelian law (428 or 441).
On the one hand
it allowed every debtor who declared on oath his solvency to save his
personal freedom by the cession of his property; on the other hand it
abolished the former summary proceedings in execution on a loan-debt,
and laid down the rule that no Roman burgess could be led away to
bondage except upon the sentence of jurymen.
