Two significant discoveries of the last century pertain to the 72 AD (or CE) Siege of Masada and the Secret Gospel of Mark.  The Siege of Masada was previously known only through the Jewish-Roman historian Josephus.  But a Jewish archaeological team, led by Yigeal Yadin, 1963-65, excavated Masada, and discovered, among other things, the lots cast by the Jews at Masada, supporting Josephus' account of the heroic Jews who gave their lives rather than be captured by the Romans.  Another great discovery was in 1958 by Professor Morton Smith, of Columbia Univ., who discovered as the Mar Saba Monastery near Jerusalem, a fragment of the "Secret Gospel of Mark" which describes Jesus giving Lazarus something like the initiatory work and endowment found in Temples of the Church of Jesus Christ of Latter-day Saints.