The well-known figure who started modern nursing practices is Florence Nightingale. Often referred to as the "Lady with the Lamp," Nightingale revolutionized nursing during the Crimean War by implementing sanitation practices and rigorous training for nurses. Her emphasis on hygiene, data collection, and patient observation transformed healthcare practices. She founded the Nightingale School of Nursing in 1860, which formalized nursing education and professionalism. Nightingale’s contributions established nursing as a respected profession and laid the foundation for modern nursing standards and practices.