In the <a href="https://en.wikipedia.org/wiki/Battle_of_the_Zab" id="mwGQ" rel="mw:WikiLink" title="Battle of the Zab">Battle of the Zab</a>, the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Abbasid" id="mwGg" rel="mw:WikiLink" title="Abbasid">Abbasid</a> rebels defeat the <a href="https://en.wikipedia.org/wiki/Umayyad_Caliphate" id="mwGw" rel="mw:WikiLink" title="Umayyad Caliphate">Umayyad Caliphate</a>, leading to the overthrow of the dynasty.<sup about="#mwt20" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-2"}}' id="cite_ref-2" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_25#cite_note-2" id="mwHA" style="counter-reset: mw-Ref 2;"><span class="mw-reflink-text" id="mwHQ">[2]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-2"><cite about="#mwt17" class="citation book cs1" id="CITEREFSharon1983"><a href="./Moshe_Sharon" id="mwBu8" rel="mw:WikiLink" title="Moshe Sharon">Sharon, Moshe</a> (1983). <a class="external text" href="https://books.google.com/books?id=NPvZoG6NtLkC&amp;pg=PA13" id="mwBvA" rel="mw:ExtLink nofollow"><i id="mwBvE">Black Banners from the East: The Establishment of the Abbāsid State: Incubation of a Revolt</i></a>. JSAI. p.<span id="mwBvI" typeof="mw:Entity"> </span>13. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBvM" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBvQ" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-965-223-501-5" id="mwBvU" rel="mw:WikiLink" title="Special:BookSources/978-965-223-501-5"><bdi id="mwBvY">978-965-223-501-5</bdi></a>.</cite><span about="#mwt17" class="Z3988" id="mwBvc" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Black+Banners+from+the+East%3A+The+Establishment+of+the+Abb%C4%81sid+State%3A+Incubation+of+a+Revolt&amp;rft.pages=13&amp;rft.pub=JSAI&amp;rft.date=1983&amp;rft.isbn=978-965-223-501-5&amp;rft.aulast=Sharon&amp;rft.aufirst=Moshe&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DNPvZoG6NtLkC%26pg%3DPA13&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+25"></span></span>