Hebrew for 'instruction,' the Talmud is a codification of Jewish oral law, based on the Torah. It consists of the Mishnah (the laws themselves), and the Gemara (scholarly commentary on the Mishnah). The Gemara developed in two Judaic centers, Palestine and Babylonia, so there are two Talmuds (Palestinian and Babylonian), the latter considered more authoritative. Rabbis and lay scholars finished the Babylonian Talmud around 600.