The Mishnah is the first written collection of the Jewish oral traditions that are known as the Oral Torah. Having been collected in the 3rd century AD, it is the first work of rabbinic literature, written primarily in Mishnaic Hebrew but also partly in Jewish Aramaic. The oldest surviving physical fragments of it are from the 6th to 7th centuries. It is viewed as authoritative and binding revelation by most Orthodox Jews and some non-Orthodox Jews.