The epoch reference date (start) of the modern <a href="https://en.wikipedia.org/wiki/Hebrew_calendar" id="mwEQ" rel="mw:WikiLink" title="Hebrew calendar">Hebrew calendar</a>.<sup about="#mwt15" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-1"}}' id="cite_ref-1" rel="dc:references" typeof="mw:Extension/ref"><a href="./October_7#cite_note-1" id="mwEg" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwEw">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt12" class="citation book cs1" id="CITEREFReingold2001">Reingold, Edward (2001). <i id="mwBzI">Calendrical calculations</i>. Cambridge, UK New York: Cambridge University Press. p.<span id="mwBzM" typeof="mw:Entity"> </span>97. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBzQ" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBzU" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780521777520" id="mwBzY" rel="mw:WikiLink" title="Special:BookSources/9780521777520"><bdi id="mwBzc">9780521777520</bdi></a>.</cite><span about="#mwt12" class="Z3988" id="mwBzg" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Calendrical+calculations&amp;rft.place=Cambridge%2C+UK+New+York&amp;rft.pages=97&amp;rft.pub=Cambridge+University+Press&amp;rft.date=2001&amp;rft.isbn=9780521777520&amp;rft.aulast=Reingold&amp;rft.aufirst=Edward&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOctober+7"></span></span>