Florence Nightingale was born in 1820 in Florence, Italy. During the Crimean War, she and a team of nurses improved unsanitary conditions at a British hospital in Turkey, reducing the death count by two-thirds. She established nursing as a respected profession and founded the Nightingale Training School for Nurses in 1860. Nightingale gained the nickname "The Lady with the Lamp" for her solitary work caring for soldiers at night. She died in 1910 at age 90 and left a significant legacy of healthcare reform through her writings and establishment of professional nursing standards.