Allegheny Arsenal
...that the Allegheny Arsenal explosion on September 17, 1862 was the single largest civilian disaster during the American Civil War?
...that the <b id="mwA-Y"><a href="./Allegheny_Arsenal" id="mwA-c" rel="mw:WikiLink" title="Allegheny Arsenal">Allegheny Arsenal</a></b> explosion on <a href="./September_17" id="mwA-g" rel="mw:WikiLink" title="September 17">September 17</a>, <a href="./1862" id="mwA-k" rel="mw:WikiLink" title="1862">1862</a> was the single largest civilian disaster during the <a href="./American_Civil_War" id="mwA-o" rel="mw:WikiLink" title="American Civil War">American Civil War</a>?