The famous British nurse known for founding modern nursing practices is Florence Nightingale. She revolutionized healthcare in the 19th century by emphasizing sanitation, patient care, and the need for trained nurses. Nightingale's work during the Crimean War highlighted the importance of hygiene and introduced statistical methods to improve medical care. Her efforts laid the foundation for nursing as a respected profession, creating the first official nursing school and establishing standards that transformed healthcare practices around the world. Nightingale's legacy continues to influence nursing education and healthcare systems today.