Hippocrates was an ancient Greek physician who was born around 460 BC on Cos, an Aegean island. Many consider him to be the “father of medicine” because he transformed the path of Greek medicine. He believed that diseases were caused by some type of natural action instead of being caused by the spirits or gods. Born: c.460 BC at Kos, Ancient Greece. Died: c.370 BC at Larissa, Ancient Greece.