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The three great ancient teachers of medicine: Galen (Roman), Avicenna (Persian), and Hippocrates (Greek). Woodcut from an early Stock Photo - Alamy
![The Prince of Medicine: Galen in the Roman Empire: 9780199767670: Medicine & Health Science Books @ Amazon.com The Prince of Medicine: Galen in the Roman Empire: 9780199767670: Medicine & Health Science Books @ Amazon.com](https://m.media-amazon.com/images/I/51ywQX2pEvL._AC_UF1000,1000_QL80_.jpg)
The Prince of Medicine: Galen in the Roman Empire: 9780199767670: Medicine & Health Science Books @ Amazon.com
Who was the Greek doctor, Galen? Galen first discovered that human arteries contained blood in the 2nd century (approx 2000+ years ago)… | Instagram
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