Old Testament Manuscripts
The originals were probably written over the
period 1400-400 BC.
The earliest fragments discovered to date are
among the Dead Sea Scrolls: parts of Exodus and
Samuel from ~250 BC.
The earliest complete book (Isaiah) comes from
the same find, dating to ~125 BC.
The earliest complete copy of the whole OT,
surprisingly, is a Greek translation, from ~AD
The earliest complete Hebrew manuscript only
goes back to about AD 950.