Galen of Pergamon

About this figure

Galen of Pergamon (c. 129 - c. 216 AD) was a Greek physician, surgeon, and philosopher whose writings shaped Western and Islamic medicine for well over a thousand years. Trained in his native Pergamon and later in Smyrna, Corinth, and Alexandria, he began his medical career treating gladiators, a position that gave him direct, if unusual, experience with wounds, torn muscles, and internal injuries most physicians never saw. He later moved to Rome, where his reputation as a diagnostician and public anatomical demonstrator won him patronage at the highest levels, including service as physician to the emperor Marcus Aurelius and, later, to Commodus and Septimius Severus.

Galen was an extraordinarily prolific author, producing hundreds of treatises on anatomy, physiology, pharmacology, and philosophy, of which a substantial number survive. Among them is "On the Natural Faculties," which lays out his theory that the body's organs each possess specific governing faculties, such as attraction, retention, digestion, and expulsion, that direct their functions in accordance with the classical theory of the four humors. Because dissection of human cadavers was not practiced in Rome, Galen based much of his anatomical work on the dissection of animals, particularly pigs and Barbary apes, and he sometimes extrapolated their anatomy directly onto humans; some of these errors went unchallenged for centuries until anatomists such as Andreas Vesalius and William Harvey corrected them. Despite these limitations, his emphasis on direct observation, deliberate experiment, such as tying off nerves and vessels to observe the resulting effects, and systematic argument set a standard for medical reasoning that persisted, largely unquestioned, through the medieval period in both Europe and the Islamic world. Little is known with certainty about the final years of his life, and even the year of his death remains a matter of scholarly debate.

Written by Epoch Voices. Not the figure’s own words.