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John Snow Cholera Map

from Brain Pickings

The Ghost Map: Hard Lessons in Epidemiology from Victorian London

The Ghost Map (a little public health and history mixed together)

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from BuzzFeed

21 Amazing Secret Places To Find In London

John Snow’s water pump, Soho | Almost directly behind Oxford street, on Broadwick street sits John Snow’s Water Pump. A cholera epidemic swept Soho in 1854, killing 500 people in a few months. John Snow (the physician, not the Game Of Thrones character) figured out that the water pump was the source of the outbreak, so had the handle removed. The cases of cholera declined and the outbreak ended.

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from the Guardian

John Snow's data journalism: the cholera map that changed the world

Beginnings of Epidemiology > John Snow's data journalism: the cholera map that changed the world John Snow's map of cholera outbreaks from nineteenth century London changed how we saw a disease - and gave data journalists a model of how to work today

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from the Guardian

John Snow's data journalism: the cholera map that changed the world

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 >>> Can you guess where the cholera was coming from, in this seminal 19th century thematic map?

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John Snow's Ghost Map In 1854 John Snow's map of cases led to the discovery that a cholera outbreak in Soho, London was geographically tied to the location of a water well.  At the time, the popular belief was that people would become sick by breathing “bad air.”  But John Snow’s early data visualization of reported cases was used to convince local officals to shut down the potentially contaminated well (by removing the handle).  This action is commonly credited with ending the epidemic.

from the Guardian

John Snow's data journalism: the cholera map that changed the world

John Snow's cholera map of Soho

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dr john snow, cholera map of london, 1854

Google Maps Mania: John Snow's Cholera Map on Google Maps