The institutional scheme of Roman law was developed primarily by Gaius on the basis of a preceding tradition of law manuals. The scheme consists of dividing the law into a General Part, Family Law, Property Law, Law of Succession, Law of Obligations, and Civil Procedure. This scheme is apparent not only in Gaius’s Institutes but also in the whole of his didactic scheme, which can be discerned from descriptions of the curriculum in his time. Gaius’s larger didactic scheme is indebted to contemporary philosophical, rhetorical, and didactic currents, which made it possible for him to organise the law of Rome in such a solid and plausible way that the emperor Justinian adopted this scheme for his compilation, comprising the Institutes, the Digest, and the Codex.
