(¤ 129 p Chr., ? about 200 p. Chr.) Galenos of Pergamon, also (Aelius) Galenus (German usually Galen) was a Greek physician, anatomist, medical writer, researcher and polymath; who was mainly active in Rome. First monographic account of skin diseases.
Galen created a body of medical work with his approximately 200 writings written in Greek. He is considered one of the most important physicians of antiquity. Galen refined the Hippocratic doctrine, especially the four-juices doctrine (humoral pathology). His comprehensive teachings on the anatomy and physiology of the human body dominated the entire field of medicine until the 17th century. The cardinal signs of inflammation described by Celsus and later supplemented by Galen are still valid today:
Rubor (redness)
Calor (overheating)
Tumor (swelling)
Dolor (pain)
Functio laesa (functional limitation)