The historic figure known for her contributions to nursing during the Crimean War is Florence Nightingale. She established nursing as a profession, introducing sanitary practices that drastically reduced death rates in military hospitals. Nightingale’s dedication to data collection and statistical analysis laid the groundwork for modern nursing practices. Her work not only transformed healthcare in wartime but also emphasized the importance of compassion, sanitation, and patient care, establishing her legacy as the founder of modern nursing.