Jewish History: Biblical History: The Sefer ha-Yashar:
Is there a book called the "Sefer ha-Yashar" (Joshua 10:13 and 2 Samuel 1:18)?
A book called the Sefer ha-Yashar that expands on the Biblical
narratives, attributed to Josephus, was published in Venice in
1625, and many times since. It definitely isn't the lost Sefer
ha-Yashar which is mentioned in the Bible.
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