History: Medical breakthrough that made possible performing surgeries more easily: first anesthesia, performed in 1847 [898 x 628], more info in comments.

https://i.redd.it/wui7pn8kwmg11.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/981ax1/medical_breakthrough_that_made_possible/?utm_source=ifttt