The Gemara is the part of the Talmud that contains rabbinical commentaries and analysis of the Mishnah. After the Mishnah was published by Rabbi Yehuda HaNassi, the work was studied exhaustively by generation after generation of rabbis in Babylonia and the Land of Israel. Their discussions were written down in a series of books that became the Gemara, which when combined with the Mishnah constituted the Talmud. The rabbis of the Gemara are referred to as Amoraim. Unlike the Mishnah, the Gemara is mostly written in Aramaic, the Jerusalem Gemara in Western Aramaic and the Babylonian in Eastern Aramaic, but both contain portions in Hebrew.