Thomas Simpson
Thomas Simpson FRS was a British mathematician and inventor known for the eponymous Simpson's rule to approximate definite integrals. The attribution, as often in mathematics, can be debated: this rule had been found 100 years earlier by Johannes Kepler, and in German it is called Keplersche Fassregel, or roughly "Kepler's Barrel Rule".
20 August 1710
Born on the same birth day (20 August): Antoine Perrenot de Granvelle • Barney Rogers • Benjamin Harrison • Felipe Contepomi • Isaac Hayes • John Stehr • Peter Oakley • Sandy Brondello • Szabolcs Sáfár