Knight, Judson (2000). "Alexis Claude Clairaut". In Schlager, Neil; Lauer, Josh (eds.). Science and Its Times, Vol. 4: 1700-1799. pp. 247–248. Retrieved 26 April 2018.
Other dates have been proposed, such as 7 May, which Judson Knight and the Royal Society report. Here is a discussion and argument for 13 May. Courcelle, Olivier (17 March 2007). "13 mai 1713(1): Naissance de Clairaut". Chronologie de la vie de Clairaut (1713-1765) (in French). Retrieved 26 April 2018.
O'Connor and, J. J.; E. F. Robertson (October 1998). "Alexis Clairaut". MacTutor History of Mathematics Archive. School of Mathematics and Statistics, University of St Andrews, Scotland. Retrieved 12 March 2009.