Influence of Impossibility of Performance on the Validity of Legal Transactions – Application of the Rule “impossibilium nulla obligatio est” in Modern Law

Abstract

The article deals with the issue of initial impossibility of performance of an obligation and the influence of such impossibility of performance on the validity of the legal transaction that establishes such an obligation. The legal doctrine convincingly demonstrates that for Roman lawyers the rule Impossitionbilium nulla obligatio est merely meant that nobody can be obliged to perform something that cannot be performed; however, it did not necessarily follow that a contract establishing such an obligation was void. Modern civil codifications overlook another significant feature of the Roman law – the uncontested application of the principle Impossibilium nulla obligatio est only in case of stipulatio, whereas modern contract law has its origins in the Roman law of consensual contracts.