Mapping the Cholera Outbreak of 1854

The video below is a summary of John Snow's two famous maps -- his map of the Broad Street cholera outbreak from 1854 and his water company map from 1853-1854. You can view the maps as seen in this video on our custom PredictionX: John Snow Maps page on ArcGIS; a visual guide of how to adjust the settings on that page is below the video.

The screenshot below is directions for how to use the PredictionX: John Snow ArcGIS page:

Cholera map instructions