This phrase encapsulates the meaning of the systematic compilation of laws and legal principles undertaken during the reign of the Byzantine Emperor Justinian I in the 6th century AD. It signifies not only the codification of existing Roman laws but also the organization and clarification of legal pronouncements, imperial decrees, and juristic opinions. An example would be the consolidation of scattered edicts into a structured collection of legal rules governing various aspects of life, from property rights and contracts to criminal justice and administrative procedures.
Its importance lies in providing a comprehensive and accessible legal framework that influenced legal systems for centuries. Benefits included standardization of legal practices, reduced ambiguity in legal interpretation, and the preservation of classical Roman legal thought for future generations. Historically, this work provided a foundation for legal scholarship and jurisprudence in Europe, serving as a key source for the development of canon law and secular legal systems during the Middle Ages and beyond. The effort streamlined legal processes, ensuring greater fairness and efficiency in legal proceedings across the Byzantine Empire and ultimately impacting legal thought globally.