Civil law tradition is the oldest and the widest distributed legal system dating back to 450 BC in its origin. Even though it is the oldest of all the legal system. The Civil law took exponentially longer to develop than the Common law. The genesis of which was swift in comparison. 450BC is designated as beginning of development of Civil law because this is the year of 12 tablets.
The first written law and rudimentary (Fundamental) system of dispute resolution in ancient Rome. The next comes the significant period is the development of the civil law in the 6th century AD when the Emperor “Justinian” commissioned the “Corpus Juris Civilis” to be written which would codify the Roman law on family inheritance ,property, contracts and among other areas of law. After the fall of Roman empire the codify Roman law was no longer in use, however during the enlightment period in Rome from 11th -15th century, after the so called dark ages , Corpus Juris Civilis was rediscovered during this time and the first modern European University was founded in Bologna,Italy. Different Juris came to study Civil law from all over Europe and brought this influence of the codified form of law back to their own countries. Studying Roman law at Bologna, Italy and also studied Cannon law developed by the church for its governance to regulate rights & obligations of its followers.
This coupled with Roman law form the basis of the laws applied in Europe all this time. At this time also influential in developing a common legal framework in Europe which was generally based on trade and its basic was commercial law that also developed in Italy & prevailed throughout Europe.
These three bodies of law according to John Henry Merryman (Jurist) are the principles historical resource of the concept, Institutions and procedures of the private law and procedural law and much of criminal law of modern Civil law system. Public law including administrative law and constitutional law