Today I Learned
Oct. 30th, 2016 09:30 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
How a "magnificently" wrong science theory developed by Max van Pettenkofer helped solve the cholera problem and stimulated development of modern sanitation systems in the 19th century Europe.
Contagionism vs Anticontagionism
Contagionism vs Anticontagionism