https://github.com/davepinch/pinchy.cc/blob/master/content/topics/people/m/marquis-de-condorcet/he-ceased-to-calculate-and-to-live.md
In St. Petersburg on 18 September 1783, after a lunch with his family, Euler was discussing the newly discovered planet Uranus and its orbit with Anders Johan Lexell when he collapsed and died from a brain hemorrhage.
