<a href="https://en.wikipedia.org/wiki/American_Civil_War" id="mwTA" rel="mw:WikiLink" title="American Civil War">American Civil War</a>: The <a href="https://en.wikipedia.org/wiki/H._L._Hunley_(submarine)" id="mwTQ" rel="mw:WikiLink" title="H. L. Hunley (submarine)"><i id="mwTg">H. L. Hunley</i></a>, the first submarine to sink a ship, sinks, killing its inventor.