<a href="https://en.wikipedia.org/wiki/Benjamin_Franklin" id="mwig" rel="mw:WikiLink" title="Benjamin Franklin">Benjamin Franklin</a> proves that <a href="https://en.wikipedia.org/wiki/Lightning" id="mwiw" rel="mw:WikiLink" title="Lightning">lightning</a> is <a href="https://en.wikipedia.org/wiki/Electricity" id="mwjA" rel="mw:WikiLink" title="Electricity">electricity</a> (traditional date, the exact date is unknown).