Seder Olam Rabbah VeSeder Olam Zuta. With Megilath Ta’anith and Sepher HaKabbalah etc. by Avraham ben David of Posquieres (RAVa”D).

Attributed to Yose ben Chalaphta, the Seder Olam Raba is mentioned in the Talmud. It was the first text to establish the era “from the Creation of the World” or, Anno Mundi. The Megilath Ta’anith is of Tannaitic origin and is particularly useful as an historical parallel to the facts presented by Josephus. The Seder Olam Zuta probably dates to the early medieval period. Abraham Zacuto included large portions of it in his Sepher Yuchasin.