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John Snow's 1854 Cholera Map recreated with modern mapping tools (click through for links to data and an interactive map)


The Cholera Map of John Snow (1854)

from Visualoop

Vintage Infodesign [11

John Snow's cholera map of Soho


John Snow's famous Cholera Map from 1854, updated to show off CartoDB's cloud based mapping tool.

Robin painstakingly georeferenced every cholera death and pump location, so we could recreate the map on a modern layout of London. We wondered what would happen if we tried to recreate the map using a modern tool, opting to try CartoDB, using the the lovely Stamen 'toner' projection to at least keep the background in common with Snow's London.


"John Snow’s cholera map helped to show that contaminated wells were at the center of outbreaks. His research helped save countless lives and set the foundation for the field of epidemiology."

from WIRED

14 World-Changing Data Visualizations, From the Last 4 Centuries

John Snow's cholera map #slide-id-561031 Wired Magazine


Map, cholera outbreak 19th century - John Snow 1854