The founder of modern nursing is Florence Nightingale. She revolutionized the field by introducing hygiene practices and statistical analysis in healthcare during the 19th century. Nightingale's efforts during the Crimean War significantly improved sanitary conditions in military hospitals, reducing the mortality rate of wounded soldiers. She established the first professional nursing school, the Nightingale School of Nursing, paving the way for nursing to become a respected profession for women. Her legacy continues to influence nursing education and practice today.