Roman Law Timeline

(753 BCE – 565 CE)

Roman Law is the legal system of ancient Rome, spanning over a thousand years of development from the early Republic to the Byzantine Empire. It began with customary laws and written codes like the Twelve Tables (c. 450 BCE), evolved through sophisticated juristic interpretation during the classical period, and was codified under Emperor Justinian I in the 6th century CE. Its principles—such as equality before the law, contractual obligations, and property rights—profoundly shaped civil law traditions across Europe and much of the modern world. More Less

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Early Roman law

Law of the Twelve Tables

450 BC

The first legal text of Roman law, the Law of the Twelve Tables, dates from the mid-fifth century BC. It established a written foundation for Roman legal practice and remained a touchstone of Roman jurisprudence for centuries.

Image source: Twelve Tables

Legis actio procedure prevails

450 BC - 100 BC

Roughly, the legis actio system prevailed from the time of the Twelve Tables (c. 450 BC) until about the end of the 2nd century BC, marking the earliest formal procedural system of Roman litigation.

Early jurists write legal treatises

200 BC

Whether or not the traditional stories are credible, jurists were active and legal treatises were written in larger numbers before the 2nd century BC, laying the groundwork for a sophisticated Roman legal culture.

Erosion of the Roman constitution

100 BC - 27 BC

Throughout the 1st century BC, the power and legitimacy of the Roman constitution progressively eroded, as political violence and civil wars undermined republican institutions and paved the way for imperial rule.

Formulary procedure becomes dominant

100 BC - 200 AD

The formulary procedure was primarily used from the last century of the Republic until the end of the classical period (c. AD 200), replacing the older legis actio system with more flexible legal formulas.

Classical period

Gaius's institutional system gains influence

150 AD

Gaius's system was used for many centuries and has been recognized in later legal treatises like William Blackstone's Commentaries on the Laws of England and enactments like the French Code civil and the German BGB.

Image source: Gaius (jurist)

Ulpian divides law into three branches

200 AD

The 2nd-century Roman jurist Ulpian divided law into three branches: natural law, which existed in nature and governed animals as well as humans; the law of nations, which was distinctively human; and civil law, which was specific to a people.

Image source: Ulpian

Cognitio extra ordinem used post-classically

200 AD - 500 AD

Cognitio extra ordinem was used in post-classical times, replacing the formulary procedure with an administrative judicial process conducted by imperial officials.

Decline of refined legal culture

250 AD

By the middle of the 3rd century, the conditions for the flourishing of a refined legal culture had become less favourable, as crisis gripped the Empire and juristic activity waned.

Few named jurists after mid-3rd century

250 AD

Few jurists after the mid-3rd century are known by name, reflecting the decline of classical Roman legal scholarship during the period of imperial crisis.

Byzantine era

Empire's centre moves to Greek East

330 AD

When the centre of the Empire was moved to the Greek East in the 4th century, many legal concepts of Greek origin appeared in the official Roman legislation.

Image source: Byzantine Empire

Justinian's codes compiled

529 AD - 534 AD

Emperor Justinian ordered the compilation of the Corpus Juris Civilis, including the Code and the Digest, which preserved classical Roman law and became its most enduring legacy.

Image source: Corpus Juris Civilis

Greek becomes legal language in the East

600 AD

From the 7th century onward, the legal language in the East was Greek, with Eastern European law continuing to be influenced by Byzantine law.

Image source: Byzantine law

Leo III issues the Ekloge ton nomon

726 AD

Leo III the Isaurian issued a new code, the Ekloge ton nomon, in the early 8th century, reforming Byzantine law in the Greek language.

Image source: Ekloge ton nomon

Basilica commissioned by Basil I and Leo VI

870 AD - 900 AD

In the 9th century, the emperors Basil I and Leo VI the Wise commissioned a combined translation of the Code and the Digest, parts of Justinian's codes, into Greek, which became known as the Basilica.

Image source: Basilika

Basilica commissioned by Basil I and Leo VI

Fetha Negest based on Roman law in Ethiopia

1450 AD - 1931 AD

Along with the Syro-Roman law book, Justinianic Roman law formed the basis for much of the Fetha Negest, which remained in force in Ethiopia until 1931.

Roman law basis in Greece and Orthodox courts

1453 AD

Roman law as preserved in the codes of Justinian and in the Basilica remained the basis of legal practice in Greece and in the courts of the Eastern Orthodox Church even after the fall of the Byzantine Empire and the conquest by the Turks.

Medieval revival

Holy Roman Empire sustains Roman law practice

963 AD - 1806 AD

In Germany, Roman law practice remained in place longer under the Holy Roman Empire (963–1806), making German lands a stronghold of the ius commune tradition.

Image source: Holy Roman Empire

Digest manuscript rediscovered in Italy

1070 AD

The Digest portion of Justinian's compilation was largely ignored for several centuries until around 1070, when a manuscript of the Digest was rediscovered in Italy, sparking renewed study of Roman law.

Image source: Digest (Roman law)

Roman law re-introduced into legal practice

1100 AD

For this reason, Roman law, or at least some provisions borrowed from it, began to be re-introduced into legal practice, centuries after the end of the Roman empire.

Roman law applied across Western Europe

1100 AD - 1800 AD

Roman law also denoted the legal system applied in most of Western Europe until the end of the 18th century, shaping the continent's shared legal heritage.

Rediscovered Roman law dominates Europe

1550 AD

By the middle of the 16th century, the rediscovered Roman law dominated the legal practice of many European countries, forming the backbone of the continental ius commune.

Usus modernus Pandectarum in Germany

1600 AD

From the 17th century, Roman law in Germany had been heavily influenced by domestic (customary) law, and it was called usus modernus Pandectarum.

Image source: Codex Maximilianeus bavaricus civilis

Modern codification

English lawyers borrow from Roman law

1800 AD - 1850 AD

Especially in the early 19th century, English lawyers and judges were willing to borrow rules and ideas from continental jurists and directly from Roman law.

European states adopt or draft civil codes

1804 AD - 1900 AD

In the course of the 19th century, many European states either adopted the French model or drafted their own codes, spreading codified law influenced by Roman traditions.

Image source: Civil law (legal system)

French civil code comes into force

Mar 21, 1804

In 1804, the French civil code came into force, drawing on Roman law principles and becoming one of the most influential legal documents in modern history.

Image source: Napoleonic Code

German civil code (BGB) goes into effect

Jan 1, 1900

In some parts of Germany, Roman law continued to be applied until the German civil code (bürgerliches Gesetzbuch, BGB) went into effect in 1900, ending centuries of direct Roman law application there.

Key Facts

The Twelve Tables, created around 450 BCE, were Rome's first written legal code and were displayed publicly in the Forum so all citizens could know the law.
During the classical period (roughly 1st century BCE to 3rd century CE), jurists like Ulpian, Paulus, and Gaius developed sophisticated legal doctrines that form the core of Roman private law.
In 212 CE, Emperor Caracalla's Constitutio Antoniniana granted Roman citizenship to nearly all free inhabitants of the empire, extending Roman law across the Mediterranean world.
Emperor Justinian I commissioned the Corpus Juris Civilis (529–534 CE), which compiled and codified centuries of Roman legal material into the Institutes, Digest, Code, and Novellae.
Rediscovered in medieval Europe around the 11th century, Justinian's codification became the foundation of civil law systems used today in most countries outside the Anglo-American common law tradition.

Source

This Roman Law timeline was generated with the help of AI, using information found on the internet.

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