The famous figure known for her work in nursing during the Crimean War was Florence Nightingale. Renowned as the founder of modern nursing, she transformed hospital conditions through her dedication and innovation. Nightingale's data-driven approach to healthcare emphasized the importance of sanitation and proper care for wounded soldiers, reducing mortality rates significantly. She established the first formal training school for nurses and published detailed reports on her findings, which ultimately revolutionized the nursing profession. Her legacy remains influential in shaping healthcare practices and highlighting the need for professionalism in nursing.