April 30 – Swiss mathematician
Daniel Bernoulli presents a paper at the
French Academy of Sciences in
Paris in which "a mathematical model was used for the first time to study the population dynamics of infectious disease."[2]
^Roberts, Charles (2011). Ordinary Differential Equations: Applications, Models, and Computing. CRC Press. pp. 139–140.
^Singy, Patrick (2003). "Friction of the Genitals and Secularization of Morality". Journal of the History of Sexuality. 12: 345–64.
doi:
10.1353/sex.2004.0015.
JSTOR3704892.
^Laqueur, Thomas W. (2003). Solitary Sex: A Cultural History of Masturbation. New York: Zone Books.
ISBN1-890951-32-3.