The American Civil War
Unfortunately at the time Civil War had happened the technology of warfare had surpassed the advancement of health care.
3 most often used anesthetics were
White soldier made 13$ a month, black soldier made 7$.
A Confederate soldier made 11$, but often had not been paid at all.
Slavery abolished (1863)
Dissolution of the Confederacy (1865)
Abraham Lincoln assassinated (1865)