The Semmelweiss Medical Museum is housed in the former home of the doctor Ignác Semmelweiss who discovered the importance of washing one's hands after surgery. He was deemed, "Mothers' Savior", because he realized that doctors were delivering babies after preforming surgery, and parts of the corpses got into the blood stream of the mothers, causing blood poisoning. Sometimes more than 30% of delivering mothers would die in a month when delivered by doctors, as opposed to 3% by midwives.