British National Grid Shapefile Download' title='British National Grid Shapefile Download' />John Snows famous cholera analysis data in modern GIS formats Robins Blog.January 6, 2. 01.In 1. 85. 4 there was a massive cholera outbreak in Soho, London in three days over 1.Famously, John Snow plotted the locations of the deaths on a map and found they clustered around a pump in Broad Street he suggested that the pump be taken out of service thus helping to end the epidemic.This then helped him formulate his theory of the spread of cholera by dirty water.This analysis is famous as it is often considered to be The first epidemiological analysis of disease trying to understand the spread of cases by factors in the environment.CeSd0JoF2GH7lnqsbJzTUNHzjLHPerewnViFCCcK07brWdLxdF4r1oqj9pTaFMcSg=h900' alt='British National Grid Shapefile Download' title='British National Grid Shapefile Download' />
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