Anesthesia
-1842- Crawford Long develops anesthesia.
-1846- Nitrous oxide, laughing gas, was first used bydentist Horace Wells.
-1846- Nitrous oxide, laughing gas, was first used bydentist Horace Wells.
Stethoscope
-Rene Laennec invented the stethoscope.
- The stethoscope increased the ability to hear the heart and lungs allowing doctors to determine if a disease was present.
- The stethoscope increased the ability to hear the heart and lungs allowing doctors to determine if a disease was present.
Elizabeth Blackwell
- First female physician in the US.
Benjamin Franklin
- Discovered bifocals.
- Found that colds could be passed from person to person.
- Found that colds could be passed from person to person.