Galen
1st-century Greek physician, surgeon and philosopher
Biography
Aelius Galenus, or Galen of Pergamon, was a Roman physician, surgeon, and philosopher who lived from 129 to around 216 CE. Born in the wealthy city of Pergamon, now Turkey, he became one of the most influential medical practitioners and theorists of his time. His father, Aelius Nicon, was a wealthy Greek architect who gave Galen a broad education in philosophy, mathematics, and natural sciences, which set the stage for his future achievements in medicine and philosophy.
Galen's medical career began with travels around the Mediterranean, where he learned from different teachers and absorbed various medical traditions. He spent time in Smyrna, Corinth, and especially Alexandria, which was known for its medical schools and library. There, he studied the anatomical work of earlier doctors like Herophilus and Erasistratus, although human dissection was banned in the Roman Empire by then. This restriction influenced how he conducted anatomical research later on.
When Galen returned to Pergamon around 157 CE, he worked as a physician for gladiators, treating wounds, fractures, and other injuries, which helped him develop his surgical skills and knowledge of anatomy. His success in Pergamon led him to Rome in 162 CE, where he quickly gained a good reputation among the city's elite. His training in philosophy combined with his medical skill made him stand out and attracted wealthy patients.
In Rome, Galen reached the peak of his career by becoming the personal physician to several emperors, including Marcus Aurelius, Commodus, and Septimius Severus. His role at the imperial court gave him the means and protection to conduct research and write extensively. Galen wrote over 350 works, though only about a third survive today. His significant work, 'De atra bile,' explored the nature of black bile, one of the four humors central to ancient medical theory. His anatomical studies, mostly conducted on Barbary apes and later pigs to avoid legal issues, became the foundation for medical education for more than a thousand years.
Before Fame
Galen grew up in Pergamon, which offered him great opportunities for learning. His father, Aelius Nicon, was rich and had a strong interest in scholarship, making sure Galen was educated in philosophy, mathematics, logic, and natural sciences. Pergamon was a major learning hub, with one of the ancient world's largest libraries and a famous medical sanctuary for Asclepius.
In the 2nd century CE, rising to medical fame required both theoretical knowledge and hands-on experience. After his father's death when Galen was about 20, he traveled to key medical centers across the Greek world. These travels exposed him to different medical theories and treatment methods, laying the groundwork for his later approach that would shape Western medicine for a long time.
Key Achievements
- Established anatomy and physiology as systematic sciences through detailed animal dissections
- Served as personal physician to multiple Roman emperors including Marcus Aurelius
- Authored over 350 medical and philosophical works covering anatomy, physiology, and therapeutics
- Demonstrated that arteries carry blood and identified the function of numerous nerves through experimental surgery
- Developed the theory of the four humors into a coherent medical system that dominated Western medicine for 1,300 years
Did You Know?
- 01.Galen discovered that arteries carry blood, not air as previously believed, by demonstrating this through public vivisections of animals
- 02.He served as physician to gladiators in Pergamon, where he claimed to have lost only five fighters compared to his predecessor's sixty deaths
- 03.Galen identified seven pairs of cranial nerves and demonstrated that the brain, not the heart, controls the voice by severing a pig's recurrent laryngeal nerve
- 04.He wrote in Greek despite living in the Roman Empire and coined over 3,000 medical terms, many still used today
- 05.Galen's public anatomical demonstrations were so popular that they drew large crowds, including senators and other prominent Romans