Emperor <a href="https://en.wikipedia.org/wiki/Septimius_Severus" id="mwEQ" rel="mw:WikiLink" title="Septimius Severus">Septimius Severus</a> defeats <a href="https://en.wikipedia.org/wiki/Roman_usurper" id="mwEg" rel="mw:WikiLink" title="Roman usurper">usurper</a> <a href="https://en.wikipedia.org/wiki/Clodius_Albinus" id="mwEw" rel="mw:WikiLink" title="Clodius Albinus">Clodius Albinus</a> in the <a href="https://en.wikipedia.org/wiki/Battle_of_Lugdunum" id="mwFA" rel="mw:WikiLink" title="Battle of Lugdunum">Battle of Lugdunum</a>, the bloodiest battle between Roman armies.<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="./February_19#cite_note-1" id="mwFQ" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwFg">[1]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt12" class="citation journal cs1" id="CITEREFGraham1978">Graham, A. J. (1978). <a class="external text" href="https://www.jstor.org/stable/4435642" id="mwBgM" rel="mw:ExtLink nofollow">"The Numbers at Lugdunum"</a>. <i id="mwBgQ">Historia: Zeitschrift für Alte Geschichte</i>. <b id="mwBgU">27</b> (4): 625–630. <a class="mw-redirect" href="./ISSN_(identifier)" id="mwBgY" rel="mw:WikiLink" title="ISSN (identifier)">ISSN</a><span id="mwBgc" typeof="mw:Entity"> </span><a class="external text" href="https://www.worldcat.org/issn/0018-2311" id="mwBgg" rel="mw:ExtLink nofollow">0018-2311</a>. <a class="mw-redirect" href="./JSTOR_(identifier)" id="mwBgk" rel="mw:WikiLink" title="JSTOR (identifier)">JSTOR</a><span id="mwBgo" typeof="mw:Entity"> </span><a class="external text" href="https://www.jstor.org/stable/4435642" id="mwBgs" rel="mw:ExtLink nofollow">4435642</a>. <a class="external text" href="https://web.archive.org/web/20210905052932/https://www.jstor.org/stable/4435642" id="mwBgw" rel="mw:ExtLink nofollow">Archived</a> from the original on 2021-09-05<span class="reference-accessdate" id="mwBg0">. Retrieved <span class="nowrap" id="mwBg4">2021-09-05</span></span>.</cite><span about="#mwt12" class="Z3988" id="mwBg8" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Historia%3A+Zeitschrift+f%C3%BCr+Alte+Geschichte&amp;rft.atitle=The+Numbers+at+Lugdunum&amp;rft.volume=27&amp;rft.issue=4&amp;rft.pages=625-630&amp;rft.date=1978&amp;rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F4435642%23id-name%3DJSTOR&amp;rft.issn=0018-2311&amp;rft.aulast=Graham&amp;rft.aufirst=A.+J.&amp;rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F4435642&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AFebruary+19"></span></span>