Legal science is one of the main components in the civil law tradition. Legal science is primarily the creation of German legal scholars of the middle and late nineteenth century, and it evolved naturally out of the ideas of Friedrich Carl von Savigny. Legal science is one of the main components in the civil law tradition (after Roman law, canon law, commercial law, and the legacy of the revolutionary period).Legal science is primarily the creation of German legal scholars of the middle and late nineteenth century, and it evolved naturally out of the ideas of Friedrich Carl von Savigny. Savigny argued that German codification should not follow the rationalist and secular natural law thinking that characterized the French codification but should be based on the principles of law that had historically been in force in Germany. Civil law is a legal system originating in Continental Europe and adopted in much of the world. The civil law system is intellectualized within the framework of Roman law, and with core principles codified into a referable system, which serves as the primary source of law. The civil law system is often contrasted with the common law system, which originated in medieval England, whose intellectual framework historically came from uncodified judge-made case law, and gives precedential authority to prior court decisions.