Florence Nightingale (1820-1910), a pioneering British nurse, statistician, and social reformer, earned a Ph.D. in physical chemistry from the University of Cambridge. She is known as the founder of modern nursing and earned the nickname “The Lady with the Lamp” for her nightly rounds that significantly reduced mortality rates through improved care and sanitation. In 1860, she established the Florence Nightingale Training School for Nurses, setting standards for modern nursing education. Nightingale used statistical analysis to advocate for healthcare reforms. Her legacy continues to inspire nursing and healthcare reforms worldwide.