Medicine has always played an important role in helping people get better, it has been around for a long time. You could go back hundreds of years and find some kind of medicine that already exists. It all started with Hippocrates, he was a doctor in 400 BC in ancient Greece. He had the idea of ​​the four humors. The four humors were: blood, phlegm, yellow bile and black bile. He believed that if these values ​​were out of balance, you would get sick. The second person to enter the world of medicine is Galen. Galen was a gladiator surgeon in ancient Rome in 120 AD. He dissected the animas to discover what their anatomy looked like. He said that the inside of an animal is the same as that of a human. At the dawn of the 1500s, Vesalius was an anatomist; he worked during the Renaissance era. He took bodies from cemeteries and dissected them. In 1543, he published a book called "The Structure of the Human Body", which contained details such as pictures of the anatomy of the human body. The book helped everyone understand what the inside of our body looks like. He corrected over 200 of Galen's errors. Pare was another important person who played an important role during this period. He was a war surgeon during this Renaissance period. When soldiers were wounded, they bled a lot, so instead of cauterizing the wounds (by pressing a boiling iron onto the wound), he used an ointment containing egg yolk, rose oil and other herbs . He used ligatures made of silk thread to tie arteries and veins together to stop bleeding. He published a book entitled “Works of Surgery” in 1575 to make his ideas known to other surgeons. Harvey is another person who worked during the Renaissance period, he discovered...... middle of paper ...... wouldn't be where we are now or it would have taken a lot more time to be where we are right now in the modern world. We have come a long way in hundreds of years, we have found a cure for some of the diseases that existed in the early years, such as tuberculosis, the black plague and one of the most important, penicillin, in my opinion , because today we still use penicillin and need it, without it, many people would not be here or would not manage to become adults for that matter. We are very fortunate to have the vaccines that we can receive and the other things that are available to us in the United States, but some places are not as fortunate as we are. Works Cited • http://i.nursegroups.com/nursing-article/medicine-through-time.html • http://en.wikipedia.org/wiki/Timeline_of_medicine_and_medical_technology