Overview
In many ways, the Tosefta acts as a supplement to the Mishnah (tosefta means "supplement or addition"). The Mishnah (Hebrew: משנה) is the basic compilation of the Oral law of Judaism; it was compiled around 220 CE. The Tosefta closely corresponds to the Mishnah, with the same divisions for sedarim ("orders") and masekhot ("tractates"). It is mainly written in Mishnaic Hebrew, with some Aramaic.
At times the text of the Tosefta agrees nearly verbatim with the Mishnah. At others there are significant differences. The Tosefta often attributes laws that are anonymous in the Mishnah to named Tannaim. It also augments the Mishnah with additional glosses and discussions. It offers additional aggadic and midrashic material, and it sometimes contradicts the Mishnah in the ruling of Jewish law, or in attributing in whose name a law was stated.
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