Florence Nightingale (1820 – 1910) was an English pioneering nurse during the Crimean War (1854–56). She became the heroic symbol of the selfless, scientifically trained nurse, establishing the nurse's critical role in medicine and hospital care.
She was popularly known as "The Lady with the Lamp", and was a pioneer of modern nursing. She was an early innovator in statistics, using pie charts to analyze the distribution of patients in her wards by type of disease, and Gannt Charts (she used them to help schedule her nurses).
She was a lifelong invalid herself, an inspiration to all who strive to overcome disabilities.