<a href="https://en.wikipedia.org/wiki/Charles_Goodyear" id="mwrg" rel="mw:WikiLink" title="Charles Goodyear">Charles Goodyear</a> receives a <a href="https://en.wikipedia.org/wiki/Patent" id="mwrw" rel="mw:WikiLink" title="Patent">patent</a> for <a href="https://en.wikipedia.org/wiki/Vulcanization" id="mwsA" rel="mw:WikiLink" title="Vulcanization">vulcanization</a>, a process to strengthen <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Rubber" id="mwsQ" rel="mw:WikiLink" title="Rubber">rubber</a>.