The influential figure in the founding of modern nursing known as "the lady with the lamp" is Florence Nightingale. Nightingale gained fame for her work during the Crimean War, where she organized nursing care for wounded soldiers and significantly improved sanitation and care conditions in military hospitals. Her dedication and emphasis on hygiene led to a dramatic reduction in mortality rates. Nightingale established nursing as a respectable profession for women, implemented training programs, and founded the Nightingale School of Nursing in 1860, which set standards for nursing education and practice globally.