Dr. Ignaz Semmelweis became known as the “savior of mothers” due to his pioneering work in antiseptic procedures during childbirth. His clinical and laboratory research proved that hand disinfection for doctors was essential in preventing infections and complications for mothers and newborn infants. Shunned and ridiculed by the medical establishment at the time, Semmelweis fought valiantly to have his new procedures adopted in delivery rooms and maternity wards. He was the pioneer of antiseptic treatment that Louis Pasteur and Thomas Lister later turned into standard medical practice.