 The "Corpus juris canonici" was used in canonical courts of the Catholic Church such as those in each diocese and in the courts of appeal at the Roman Curia such as the "Roman Rota".The term "corpus juris canonici" was used to denote the system of canonical law beginning in the thirteenth century.The term "corpus" (Latin for 'body') here denotes a collection of documents; "corpus juris", a collection of laws, especially if they are placed in systematic order.