The famous nurse known for her contributions to healthcare during the Crimean War is Florence Nightingale. Often referred to as the founder of modern nursing, she revolutionized hospital sanitation, emphasizing the importance of hygiene and patient care. Nightingale's meticulous statistical analysis revealed the impact of unsanitary conditions on mortality rates. Her groundbreaking work paved the way for nursing as a respected profession, leading to the establishment of nursing schools and training programs. Nightingale's legacy continues to influence healthcare practices and nursing education worldwide, embodying compassion and professionalism.