Concept
Version 5
Created by Boundless
History of Epidemiology
Snow cholera map
A variant of the original map drawn by Dr. John Snow (1813-1858), a British physician who is one of the founders of medical epidemiology, showing cases of cholera in the London epidemics of 1854, clustered around the locations of water pumps.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Snow-cholera-map."
https://en.wikipedia.org/wiki/File:Snow-cholera-map.jpg
Wikipedia
Public domain.