- Florence Nightingale was a pioneer of modern nursing who established the first nursing school in Germany and drastically improved care for soldiers during the Crimean War.
- Her environmental theory emphasized controlling external factors like ventilation, cleanliness, and noise to support a patient's natural healing abilities. She saw the nurse's role as manipulating the environment to help patients recover.
- Nightingale's theory and educational principles formed the basis for modern nursing practice, research, and education. Her concepts of the nurse-patient-environment relationship remain highly influential today.