 Rabbinic tradition holds that the details and interpretation of the law, which are called the "Oral Torah" or "oral law", were originally an unwritten tradition based upon what God told Moses on Mount Sinai.However, as the persecutions of the Jews increased and the details were in danger of being forgotten, these oral laws were recorded by Rabbi Judah HaNasi (Judah the Prince) in the Mishnah, redacted "circa" 200 CE.The Talmud was a compilation of both the Mishnah and the Gemara, rabbinic commentaries redacted over the next three centuries.