German Count <a href="https://en.wikipedia.org/wiki/Ferdinand_von_Zeppelin" id="mwdA" rel="mw:WikiLink" title="Ferdinand von Zeppelin">Ferdinand von Zeppelin</a> patents his <i id="mwdQ"><a href="https://en.wikipedia.org/wiki/Zeppelin" id="mwdg" rel="mw:WikiLink" title="Zeppelin">navigable balloon</a></i>.