It linked autopsy rooms to maternity wards
Semmelweis argued that physicians could carry contaminating material from dead bodies to women in labour.
Timeline Entry
Semmelweis Introduces Handwashing, 1847
In 1847, Ignaz Semmelweis ordered physicians and students in the Vienna General Hospital's obstetric clinic to wash with chlorinated lime before examining patients. Mortality from puerperal fever fell sharply.
The order matters because it showed that ordinary clinical routines could transmit fatal disease, even before germ theory gave Semmelweis's argument a stable explanatory framework.
Historical Significance
Hospital practice became suspect
It made prevention procedural
Chlorinated handwashing was a repeatable rule, not a new drug or instrument.
It exposed resistance inside medical authority
Many contemporaries resisted Semmelweis's claims because they challenged physicians' routines and lacked a widely accepted microbial explanation.
Reading Path
Where this entry fits
Read this entry with Ignaz Semmelweis, History of Antisepsis and Asepsis, Antiseptic Surgery, 1867, and History of Obstetrics and Midwifery.