How did the German Civil Code of 1900 try to unify Germany’s different legal customs?

The German Civil Code (Bürgerliches Gesetzbuch) of 1900 sought to unify Germany’s fragmented legal landscape by replacing the conflicting local customs, territorial codes, and foreign influences—such as the Napoleonic Code—that had previously governed different regions.12

Before its enactment, Germany lacked a single, cohesive body of private law; some territories operated under the Prussian Civil Code, while others relied on various local customs or French-influenced laws. This inconsistency often resulted in different bodies of law existing even within the same city.1

To resolve these incongruities, the code established a national standard based on the gemeines Recht (common law), which was rooted in the 6th-century Roman law codified by Justinian I. While the code was heavily influenced by Roman legal concepts, it also integrated elements of Germanic tribal law, particularly within the realms of family law and property. By creating this unified national framework, the code successfully superseded the vast array of disparate legal traditions that had long hindered legal consistency across the German empire.12