Pretty fascinating story.
Ignaz Philipp Semmelweis; 1 July 1818 – 13 August 1865) was a Hungarian physician and scientist, now known as an early pioneer of antiseptic procedures. Described as the "saviour of mothers",[2] Semmelweis discovered that the incidence of puerperal fever (also known as "childbed fever") could be drastically cut by the use of hand disinfection in obstetrical clinics.