Dead Sea Scrolls (jan 1, 408 BC – jan 1, 318)
Description:
 The texts have great historical, religious, and linguistic significance because they include the second-oldest known surviving manuscripts of works later included in the Hebrew Bible canon, along with deuterocanonical and extra-biblical manuscripts which preserve evidence of the diversity of religious thought in late Second Temple Judaism. 
https://en.wikipedia.org/wiki/Dead_Sea_Scrolls 
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