Bloody Wednesday
... that one of the largest operations of the Combat Organization of the Polish Socialist Party became known as the Bloody Wednesday?
... that one of the largest operations of the <a href="./Combat_Organization_of_the_Polish_Socialist_Party" id="mwDEA" rel="mw:WikiLink" title="Combat Organization of the Polish Socialist Party">Combat Organization of the Polish Socialist Party</a> became known as the <b id="mwDEE"><a href="./Bloody_Wednesday_(Poland)" id="mwDEI" rel="mw:WikiLink" title="Bloody Wednesday (Poland)">Bloody Wednesday</a></b>?