Civil law is the legal system used in most nations around the world today. In civil law the sources recognised as authoritative are, primarily, legislation—especially codifications in constitutions or statutes passed by government—and custom. Codifications date again millennia, with one early instance being the Babylonian Codex Hammurabi. Modern civil law techniques primarily derive from authorized codes issued by Byzantine Emperor Justinian I in the 6th century, which had been rediscovered by eleventh century Italy. Roman law within the days of the Roman Republic and Empire was heavily procedural, and lacked an expert legal class. Decisions were not revealed in any …