<a href="https://en.wikipedia.org/wiki/Eli_Whitney" class="extiw" title="en:Eli Whitney">Eli Whitney</a>'s Patent for the <a href="https://en.wikipedia.org/wiki/Cotton_gin" class="extiw" title="en:Cotton gin">Cotton gin</a>, March 14, 1794; Records of the Patent and Trademark Office; Record Group 241, National Archives.
<a href="https://en.wikipedia.org/wiki/Eli_Whitney" class="extiw" title="en:Eli Whitney">Eli Whitney</a>
1794
Originally uploaded to en.wp by <a href="https://en.wikipedia.org/wiki/user:Gamaliel" class="extiw" title="en:user:Gamaliel">Gamaliel</a>