Laws concerning religion are ascribed to Numa, and laws of contract to Servius Tullius, who is supposed to have collected the regulations made by his predecessors.

The Twelve Tables were notably formed on the legal enactments of Greece.

The cruel severity of the law for insolvent debtors, forms a marked contrast to the milder and more equitable arrangements of the Brehon code.

By the Roman enactments, the person of the debtor was at the mercy of his creditor, who might sell him for a slave beyond the Tiber.

The Celt allowed only the seizure of goods, and even this was under regulations most favourable to the debtor.