Roman laws were created to provide rights to citizens and establish a social and political structure. They aimed to promote ethical principles across the empire. The first Roman laws, the Twelve Tables from 451-450 BC, gave citizens legal identity and protection under the law. Later, during Justinian's rule, the Twelve Tables were compiled into four volumes called the Codex, Digest, Pandect, and Institutions in an attempt to consolidate authority, but they still required much interpretation.