Wikipedia 27 March 2020: (Gabriel Cramer, 31 July 1704 – 4 January 1752) was a Genevan mathematician. At 20 he was co-chair of mathematics at the University of Geneva. His chief works were published in the 1740s. He travelled extensively in Europe, and died at Bagnols-sur-Cèze (France).) https://en.wikipedia.org/wiki/Gabriel_Cramer