<a href="https://en.wikipedia.org/wiki/en:Alexis_Clairaut" class="extiw" title="w:en:Alexis Clairaut"><span title="French mathematician, astronomer, and geophysicist (*1713 – †1765)">Alexis Clairaut</span></a> (1713-1765), French mathematician.
<bdi><a href="https://en.wikipedia.org/wiki/en:Louis-Jacques_Cathelin" class="extiw" title="w:en:Louis-Jacques Cathelin"><span title="French engraver">Louis-Jacques Cathelin</span></a>
</bdi>
18<sup>th</sup> century <div style="display: none;">date QS:P571,+1750-00-00T00:00:00Z/7</div>
SIL-SIL14-C4-01 <a rel="nofollow" class="external autonumber" href="https://library.si.edu/image-gallery/73375">[1]</a>, image <a rel="nofollow" class="external autonumber" href="https://www.sil.si.edu/DigitalCollections/hst/scientific-identity/fullsize/SIL14-C4-01a.jpg">[2]</a>