One method of treatment in ancient Egypt is to use leech blood.
Aristotle is one of the initial figures who tries to develop medical science by observing the organs of the human body.
In the 19th century, doctors used chloroform as an anesthetic for the first time in history.
Hipocrates, a famous doctor in ancient Greece, created medical chopsticks that are still used today.
In the 16th century, doctor Nicolaus Copernicus became one of the first figures to suggest the importance of washing hands before taking medical actions.
In the 17th century, doctor William Harvey discovered that the heart is an organ that pumps blood throughout the human body.
In the 18th century, doctor Edward Jenner discovered the first vaccination in the world by using a cowpox vaccine to protect humans from smallpox.
In the 19th century, doctor Ignaz Semmelweis found that washing hands with soap can reduce the risk of patient infection during medical actions.
In the 20th century, doctor Jonas Salk found a polio vaccine that succeeded in reducing the mortality rate due to polio disease drastically.
In the 21st century, sophisticated technology such as robotics and artificial intelligence began to be applied in the field of medicine to help more accurate diagnoses and medical actions.
