The ancient law system that formed the basis for modern legal systems is Roman law. Established in ancient Rome, this legal framework included principles such as justice, legal representation, and the rights of individuals. The Twelve Tables, a public codification of Roman laws, laid foundational concepts for later legal practices. As the Roman Empire expanded, these laws were integrated into various regions it conquered, influencing the development of legal codes in Europe. The foundations established by Roman law continue to be reflected in contemporary civil law systems, emphasizing the importance of codified laws and legal rights in society.