Florence Nightingale is credited with founding modern nursing. Her pioneering work during the Crimean War transformed health care practices. Nightingale advocated for sanitation, proper nutrition, and effective medical care, establishing the importance of data collection and statistical analysis in health. Her approaches led to significant reforms in hospitals and medical training. She also founded the Nightingale Pledge, promoting ethical standards for nurses. By emphasizing professional education and compassionate care, Nightingale laid the groundwork for the nursing profession as essential to modern medicine, ensuring that healthcare is delivered with both skill and moral integrity.