After the failed First Roman – Jewish War in 70 CE, the Roman authorities took measures to suppress the rebellious province. Instead of a procurator, they installed a praetor as a governor and stationed an entire legion, the X Fretensis. Because the Revolt had resulted in the destruction of Jerusalem, the Sanhedrin at Yavne provided spiritual guidance for the Jewish nation, both in Judea and throughout the Jewish diaspora.
The so-called Letter of Aristeas or Letter to Philocrates  is a Hellenistic work of the second century BCE, one of the Pseudepigrapha. Josephus Flavius who rephrases some of the letter, ascribes it to Aristeas and written to Philocrates, describing the Greek translation of the Hebrew Law by seventy-two interpreters sent into Egypt from Jerusalem at the request of the librarian of Alexandria, resulting in the Septuagint translation.