<a href="https://en.wikipedia.org/wiki/American_Civil_War" id="mwwQ" rel="mw:WikiLink" title="American Civil War">American Civil War</a>: <a href="https://en.wikipedia.org/wiki/Union_(American_Civil_War)" id="mwwg" rel="mw:WikiLink" title="Union (American Civil War)">Union</a> forces begin the <a href="https://en.wikipedia.org/wiki/Siege_of_Port_Hudson" id="mwww" rel="mw:WikiLink" title="Siege of Port Hudson">Siege of Port Hudson</a> which lasts 48 days, the longest siege in U.S. military history.