John Snow's contribution to modern epidemiology

[@HarvardOnline]

Find out more with our free course, “PredictionX: John Snow and the Cholera Epidemic of 1854”: harvardx.link/ck60

[@drewfisher1619]

Turn out John Snow does know something

[@stischer47]

I had the pleasure and excitement of going to the site of the pump named by John Snow. The whole idea of pattern matching was my area of AI. To realize that John Snow understood the patterns was stunning.