Nominal beginning of the <a href="https://en.wikipedia.org/wiki/Bourbon_Restoration_in_France" id="mwaA" rel="mw:WikiLink" title="Bourbon Restoration in France">Bourbon Restoration</a>; anniversary date that Napoleon abdicates and is exiled to <a href="https://en.wikipedia.org/wiki/Elba" id="mwaQ" rel="mw:WikiLink" title="Elba">Elba</a>.