<a href="https://en.wikipedia.org/wiki/Franco-Prussian_War" id="mwkw" rel="mw:WikiLink" title="Franco-Prussian War">Franco-Prussian War</a>: <a href="https://en.wikipedia.org/wiki/Battle_of_Gravelotte" id="mwlA" rel="mw:WikiLink" title="Battle of Gravelotte">Battle of Gravelotte</a> is fought.