Know this name: Ignaz Semmelweis, the doctor credited with championing handwashing

Ignaz Semmelweis, a 19th century Hungarian obstetrician, is now widely credited with discovering the medical importance of washing our hands.

(CNN)By now, we've all heard this advice countless times: Wash your hands often and thoroughly, with soap and water.

It's one of the best weapons in our arsenal right now against the coronavirus.
Though washing our hands seems painfully obvious now, it wasn't always that way.