<a href="https://en.wikipedia.org/wiki/American_Civil_War" id="mw5g" rel="mw:WikiLink" title="American Civil War">American Civil War</a>: The <a href="https://en.wikipedia.org/wiki/United_States_Congress" id="mw5w" rel="mw:WikiLink" title="United States Congress">United States Congress</a> passes the <a href="https://en.wikipedia.org/wiki/Crittenden–Johnson_Resolution" id="mw6A" rel="mw:WikiLink" title="Crittenden–Johnson Resolution">Crittenden–Johnson Resolution</a>, stating that the war is being fought to preserve the <a href="https://en.wikipedia.org/wiki/Union_(American_Civil_War)" id="mw6Q" rel="mw:WikiLink" title="Union (American Civil War)">Union</a> and not to end <a href="https://en.wikipedia.org/wiki/Slavery_in_the_United_States" id="mw6g" rel="mw:WikiLink" title="Slavery in the United States">slavery</a>, in the wake of the defeat at the <a href="https://en.wikipedia.org/wiki/First_Battle_of_Bull_Run" id="mw6w" rel="mw:WikiLink" title="First Battle of Bull Run">First Battle of Bull Run</a>.