American Civil War: The <a href="https://en.wikipedia.org/wiki/Allegheny_Arsenal" id="mwmA" rel="mw:WikiLink" title="Allegheny Arsenal">Allegheny Arsenal</a> explosion in <a href="https://en.wikipedia.org/wiki/Lawrenceville_(Pittsburgh)" id="mwmQ" rel="mw:WikiLink" title="Lawrenceville (Pittsburgh)">Lawrenceville, Pennsylvania</a> results in the single largest civilian disaster during the war.<sup about="#mwt59" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-10"}}' id="cite_ref-10" rel="dc:references" typeof="mw:Extension/ref"><a href="./September_17#cite_note-10" id="mwmg" style="counter-reset: mw-Ref 10;"><span class="mw-reflink-text" id="mwmw">[10]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-10"><cite about="#mwt56" class="citation web cs1" id="CITEREFCondon,_Rich2021">Condon, Rich (September 14, 2021). <a class="external text" href="https://www.battlefields.org/learn/articles/tragedy-allegheny-arsenal-horrid-moment-most-wicked-rebellion" id="mwCHk" rel="mw:ExtLink nofollow">"The Tragedy at Allegheny Arsenal - "A Horrid Moment of a Most Wicked Rebellion"<span class="cs1-kern-right" id="mwCHo"></span>"</a>. <i id="mwCHs">Battlefields.org</i>. American Battlefield Trust<span class="reference-accessdate" id="mwCHw">. Retrieved <span class="nowrap" id="mwCH0">June 3,</span> 2024</span>.</cite><span about="#mwt56" class="Z3988" id="mwCH4" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Battlefields.org&amp;rft.atitle=The+Tragedy+at+Allegheny+Arsenal+-+%22A+Horrid+Moment+of+a+Most+Wicked+Rebellion%22&amp;rft.date=2021-09-14&amp;rft.au=Condon%2C+Rich&amp;rft_id=https%3A%2F%2Fwww.battlefields.org%2Flearn%2Farticles%2Ftragedy-allegheny-arsenal-horrid-moment-most-wicked-rebellion&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ASeptember+17"></span></span>