What are the oldest manuscripts of the Tanach?
The Dead Sea Scrolls contain the oldes known manuscripts of the Tanach. Before the discovery of the Dead Sea Scrolls, the oldest Hebrew manuscripts of the Bible were Masoretic texts dating to 9th century. The biblical manuscripts found among the Dead Sea Scrolls push that date back to the 2nd century BCE. Before this discovery, the earliest extant manuscripts of the Old Testament were in Greek in manuscripts such as Codex Vaticanus and Codex Sinaiticus.