Roman Codification Tradition

Timeline

1. c. 1–150Rome · ItalyAfter Augustus, the principate was established; praetorian edicts and imperial rescripts gradually supplemented the customary law dating from the Twelve Tables; debate between the Sabinian and Proculian schools advanced the systematization of legal doctrine.
2. c. 150–235Rome—Beirut law school · MediterraneanClassical Roman jurisprudence reached its height in the second and third centuries; Gaius's Institutes, and the writings of Papinian and Ulpian, among others, became important source material for later codification, while the emperor's power of rescript strengthened the status of written law.
3. c. 290–438Rome—Constantinople · MediterraneanFrom the era of Diocletian and Constantine, imperial constitutions multiplied; private jurists compiled the Codex Gregorianus (c. 291) and the Codex Hermogenianus, paving the way for official imperial codification.
4. 438–500Constantinople · AnatoliaTheodosius II promulgated the Theodosian Code, systematically compiling imperial constitutions from Constantine to 438 and applying them throughout both empires; it marked the maturation of the Roman codification tradition and laid the direct foundation for Justinian's Corpus Juris Civilis.