The Jews built hiding tunnels ahead of the 132 CE Bar Kochba rebellion against the Romans.<p>They are all around my home village.<p><a href="https:&#x2F;&#x2F;carleton.ca&#x2F;studyisrael&#x2F;2014&#x2F;sophie-crump-crawling-history-bar-kokhba-caves&#x2F;" rel="nofollow">https:&#x2F;&#x2F;carleton.ca&#x2F;studyisrael&#x2F;2014&#x2F;sophie-crump-crawling-h...</a><p>The historian Cassius Dio wrote &quot;[The Jews] did not dare try conclusions with the Romans in the open field, but they occupied the advantageous positions in the country and strengthened them with mines and walls, in order that they might have places of refuge whenever they should be hard pressed, and might meet togethere unobserved under ground; and they pierced these subterranean passages from above at intervals to let in air and light&quot;.