Category: Steven Johnson

DataViz History: The Ghost Map: Myth-Making and Evolution of the Ghost Map

The Earliest Spot Map of All Dr. John Snow did not draw a map until December, 1854; the first spot map was produced in September of that year by Edmund Cooper, an engineer for the Metropolitan Commission of Sewers (see map below). Cooper’s investigation resulted from public complaints linking the sewers to the cholera outbreak. Rumors…

Coopers Map

Read more DataViz History: The Ghost Map: Myth-Making and Evolution of the Ghost Map

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