Mapping London's Cholera Outbreak

Sooner or later all online mapping platforms must be used to recreate John Snow's 1854 dot map of cholera deaths in London's Soho.

Snow plotted the deaths caused by cholera around Broad Street in Soho and the location

of eleven water pumps used by the locals. The distribution of the dots
helped Snow discover that cholera occurred most frequently among those
who drank from the Broad Street