Origin year places a health practice in the year it was first adopted. Wikipedia records that after Semmelweis introduced hand washing in 1847, "the maternal mortality rate dropped from 18% to less than 2%" on his ward almost immediately. Browsing by origin year shows how long a practice a visitor takes for granted has actually been in use.
Facts
Comparison
Era of Emergence Origin Year
Sources
1. Wikipedia: Ignaz Semmelweis
WikipediaIgnaz Semmelweis, Vienna General Hospital sectionQuote, Ignaz Semmelweis, Vienna General Hospital section
In 1847, he proposed hand washing with chlorinated lime solutions at Vienna General Hospital's First Obstetrical Clinic, where doctors' wards had thrice the mortality of midwives' wards.
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