Imhotep, an Egyptian architect and scholar, describes the diagnosis and treatment of 200 diseases. He is later regarded as the Egyptian God of Medicine
Alcmaeon of Croton distinguished veins from arteries. In addition, he was the first recorded person to dissect an eye and discover an optic nerve
Birth of Hippocrates, the Greek father of medicine and the founder of the first University. He based his medicine off of observation and reasoning, instead of superstition
Diocles wrote the first known anatomy book
Herophilus studies the nervous system
Birth of Galen, considered by many to be the most important contributor to medicine following Hippocrates. He was a physician to gladiators and Roman emperors and is highly respected for his contributions to medicine.
When the Dark Ages began, people began to trust superstition once again. They believed that sickness and disease was a punishment sent down by God. This hindered medical advancements.
Persian physician Rhazes identifies smallpox and is the first to suggest blood as the cause of infectious disease.
Avicenna writes The Book of Healing and The Canon of Medicine
Roger Bacon invents spectacles
Leonardo da Vinci dissects corpses (for art)
A Dutch man named Zacharius Jannssen invents the microscope