Civil law, as a legal system of codified law, was introduced by the ancient Roman Law called the Corpus Juris Civilis (meaning Body of Civil Law). It is a collection of legal works in jurisprudence, issued from 527 to 565 AD by the imperial order of Justinian I, a Byzantine Emperor. For obvious reasons, it is also known as the Code of Justinian. It was made under the direction of Tribonian, a notable jurist in Justinian’s Court in Constantinople.

The concepts in Corpus Juris Civilis then spread all over Europe. Though not as influential as in its golden days, it still serves as a basis for modern civil law systems around the world.