Landmarks of Roman Law – Annotated Timeline (500 BCE – 1900 CE)

Landmarks of Roman Law – Annotated Timeline

The Republic

• c. 500 BCE — Ius Papirianum: Early collection of pontifical law preserving religious and customary legal rules.
• 451 BCE — Law of the Twelve Tables: First written codification of Roman law, ensuring legal certainty and public access to law.
• 304 BCE — Ius Civile Flavianum: Publication of procedural formulas (legis actiones), ending priestly monopoly over legal knowledge.
• 287 BCE — Lex Hortensia: Gave resolutions of the Plebeian Assembly (plebiscita) binding force over all Roman citizens.
• 286 BCE — Lex Aquilia: Established foundational principles of delictual liability, particularly for wrongful damage to property.
• 253 BCE — Tiberius Coruncanius as Pontifex Maximus: First plebeian chief priest; initiated public teaching of law (primus profiteri coepit).
• c. 198 BCE — Ius Aelianum: Compilation of procedural law by Sextus Aelius Paetus, further systematising legis actiones.
• c. 150–100 BCE — Founders of the Ius Civile: Scaevola, Brutus, and Manilius developed systematic juristic interpretation of civil law.
• c. 149–125 BCE — Lex Aebutia: Replaced rigid ritual actions with flexible written formulas, modernising civil procedure.
• c. 100 BCE — Rise of Ius Honorarium: Praetorian edicts expanded remedies and adapted civil law through equitable interpretation.
• c. 95 BCE — Q. Mucius Scaevola: Authored Libri XVIII de iure civili, introducing a systematic legal treatise structure.
• 67 BCE — Binding Nature of Praetorian Edicts: Praetors prohibited from departing from their declared edicts during office.
• c. 51 BCE — Servius Sulpicius Rufus: Major jurist whose extensive writings shaped classical legal reasoning.
• c. 39 BCE — Alfenus Varus: Compiled Digesta, applying philosophical reasoning to legal problem-solving.

The Principate

• 17 BCE — Lex Iulia: Made formulary procedure mandatory, consolidating procedural uniformity across Roman courts.
• c. 25 BCE — Cognitio Extraordinaria: Emergence of imperial judicial process allowing direct state adjudication.
• Early Principate — Labeo and Capito: Founded rival juristic schools (Proculians and Sabinians), shaping legal doctrine.
• Augustan Era — Ius Respondendi: Emperor granted selected jurists authority to issue binding legal opinions.
• c. 50 CE — Proculus, Sabinus, Cassius: Leading jurists whose writings influenced imperial jurisprudence.
• c. 125 CE — Edictum Perpetuum: Final consolidation of the Praetorian Edict by Julianus, fixing its text permanently.
• c. 161 CE — Gaius’ Institutiones: Introductory legal textbook forming the basis of later civil law education.
• Early 3rd Century — Classical Jurists: Papinian, Ulpian, Paulus, and Modestinus refined Roman law at its peak.
• 212 CE — Edict of Caracalla: Extended Roman citizenship to all free inhabitants of the Empire, universalising Roman law.

The Dominate and Later Developments

• 320s CE — Constantine’s Reforms: Selectively abolished or confirmed juristic writings to control legal authority.
• 425 CE — Law of Citations: Established hierarchy of authoritative jurists for resolving legal disputes.
• 439 CE — Codex Theodosianus: Official compilation of imperial constitutions from Constantine onwards.
• c. 500–508 CE — Barbarian Codes: Roman law adapted for post-Roman kingdoms through Visigothic, Burgundian, and Ostrogothic codes.
• 530s CE — Justinian’s Corpus Iuris Civilis: Comprehensive codification preserving Roman law for future generations.
• 12th Century — Revival of Roman Law: Rediscovery of Justinian’s texts by the Glossators at Bologna.
• 1900 CE — German Civil Code (BGB): Formally replaced Roman law while retaining its conceptual foundations.