The Roman Empire left many things to the West, from marble columns to an ineffectual Senate, the names of days and months, and a certain martial ideal of masculinity. Perhaps the most important imperial export, and one of pointed import for the birth of Judaism, was the law. Roman law was a marvel, and Rome was committed to both the fact and the idea of legal justice as a central component of their successful ruling strategy. But in a world lit only by fire, how did people get their laws?