Florence Nightingale had a transformative impact on the nursing profession, establishing practices grounded in sanitation and statistical analysis. Her work during the Crimean War led to significant improvements in healthcare standards and established nursing as a respected profession. She emphasized the need for proper training and education for nurses, which laid the groundwork for modern nursing schools. Nightingale’s emphasis on patient care and the environment highlighted the importance of holistic healthcare, making her a foundational figure in healthcare reform and a pioneer of professional nursing.