On the larger rose to the right you can see the deaths up to her arrival in April 1855 – most of these were not from wounds or direct combat, but from preventable diseases like cholera contracted during service or hospital treatment. The Rose diagram was born out of the need to show the before and after effect of her changes. However she had to find a way to communicate this to the British military establishment who believed that high numbers of deaths from disease were essentially unavoidable. These measures, that included hand washing and better ventilation, enormously reduced soldier deaths. Florence Nightingale’s Rose Diagram showing the impact of sanitation measures on deaths in the Crimean War.įlorence Nightingale is well-known as a nurse, but not everyone knows that she also made an important contribution to data visualisation in the form of the Rose or Coxcomb Diagram, shown above.ĭuring the Crimean War (1853-56) she instituted more rigorous hygiene practices in British field hospitals.
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