The solution to staving off cholera, then, was to build sewage systems and protect wells from contamination. That’s why this is such a hugely successful visualization: it revealed a root cause problem and inspired a solution.
Plus, in a time where dot maps and heat maps weren’t yet fully pioneered, this early attempt was incredibly innovative. The solution was only discovered because the analyst pushed the boundaries of visualization technique to create something useful and new. Visualization by: Florence Nightingale Learn more: Wikipedia During the Crimean War of the 1850s, soldier mortality rate was high and climbing.
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