Original: Florence Nightingale , OM , RRC ( ; 12 May 1820 -- 13 August 1910 ) , who came to be known as '' The Lady with the Lamp '' , was a pioneering English nurse , writer and noted statistician .
Simplified: Florence Nightingale , OM ( May 12 , 1820 -- August 13 , 1910 ) , was a famous English nurse .