Targum Jonathan is the official eastern Babylonian Targum (interpretation) to the Hebrew prophets that contains added details not found in the Hebrew source. It is not to be confused with Targum Pseudo-Jonathan, an Aramaic translation of the Torah, which is often known as "Targum Jonathan" due to a Medieval printer's error. It originated, like Targum Onkelus for the Torah, in the synagogue reading of a translation from the Prophets. The Talmud attributes its authorship to Jonathan ben Uzziel, a pupil of Hillel the Elder. Material in this Targum family may date back to the 2nd Century C.E.