The Law of Obligations

An obligation in Roman law was a duty which one person owed to another or the right which that other had to the performance of that duty. As the etymology of the word indicates from ob - about and ligo - bind, an obligation is a bond binding two persons together. It is the basis, or rather the correlative, of a right in personam.

The essence of an obligation is that it binds one person to give something to or to do something for another. In the classical period of Roman law an obligatory right was the right to require another person to do some act which was reducible to a money value.

The term obligation was used in Roman law in a wider sense than in modern law in that it denoted not only the duty but also the right. It applied to the person who enjoyed the right as well as to the person who was subject to the duty.

As contrasted with ownership (doiminium), which might be asserted against all the world, an obligatory right (a right in personam) might be asserted against the debtor alone. It was simply the right to require a particular person to act in a particular way.

The parties to an obligation were called creditor (creditor), the party entitled to performance, and debtor (debitor), the party from whom performance was due. These terms were originally confined to the case of loans, but were afterwards extended to denote the parties to any obligation.

The relation of creditor and debtor, unlike the family relations, did not produce or imply the personal subordination or subjection of the debtor to the creditor.

The creditor had no general power of control over the acts of the debtor, but merely a right to require him to do some particular act. And the acts that could be thus required were confined to acts reducible to a money value, though the particular act might be the delivery of property or the performance of some work or service, as well as the payment of a sum of money.

The debtor could always get rid of or discharge himself from the obligation by surrendering a corresponding portion of his property to his creditor. The obligation was a deduction from the debtor's property merely, and not from his liberty.

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Slavery by Birth

Mandate (Mandatum)