Florence Nightingale was a pioneer of modern nursing who gained fame for her work during the Crimean War. She arrived in Istanbul in 1854 and aided soldiers at a military hospital, gaining the nickname "The Lady with the Lamp." Nightingale was born in 1820 in Italy and trained as a nurse in the 1850s before working to reform sanitary conditions in military hospitals. She helped found the modern nursing profession through her example of compassionate patient care and died in 1910 at the age of 90.