<a href="https://en.wikipedia.org/wiki/American_Civil_War" id="mwdg" rel="mw:WikiLink" title="American Civil War">American Civil War</a>: <a href="https://en.wikipedia.org/wiki/Arkansas_in_the_American_Civil_War" id="mwdw" rel="mw:WikiLink" title="Arkansas in the American Civil War">Arkansas</a> secedes from the <a href="https://en.wikipedia.org/wiki/Union_(American_Civil_War)" id="mweA" rel="mw:WikiLink" title="Union (American Civil War)">Union</a>.