Handwashing was discovered, Ignaz Semmelweis, a Hungarian doctor, in 1947, realized the simple method of Handwashing could save hundreds of pregnant women from dying due to childbed fever. But when he announced his simple yet influential there, was mocked, humiliated, and sent to an asylum.

The Vienna general hospital where Semmelweis worked had two obstetric divisions, one staffed by midwives and other by physicians. The latter division's maternal mortality rate was high, and people through it were associated with some sort of miasma through the air, of which Semmelweis was a sceptic.

He scrutinized the scenario only to find physicians who did autopsies never sanitized themselves before entering the pregnancy ward for the next shift. Midwives who never did any dissections had a cleaner and healthier ward.

He promptly ordered compulsory sanitization with chlorinated lime water resulting in the mortality rates to plummet. But his brilliant manoeuvre sounded only crazy in other's ears gifting him mockery and humiliation and was allowed an appalling death in an insane asylum. Fast forward 170+ years and we realized how he opened our eyes!