In the 1920s, the type of smallpox vaccination practiced in the Ottoman Empire, propagated by Lady Montagu, found acceptance in England and spread from there across Europe.
The discussion about vaccination was controversial everywhere and became a model case for the application of reason. It was successful where celebrities promoted it and served as role models. In Basel, the Bernoulli brothers took on this role: Johann II had some of his children vaccinated; Daniel developed the mathematical foundations to model the development of an epidemic. In the showcase, the introduction of vaccination in Basel is presented from the point of view of Johann III Bernoulli, who was vaccinated at the age of 12 and then gave a Latin lecture on the subject.
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