This clay, called terra sigillata for the stamped discs that were formed from it and sold as medicine, contains the counterpart to elements such as kaolin and bentonite, which are used in modern medicines to treat diarrhea. Surgical techniques in the ancient world could be surprisingly advanced. The famous Roman physician Galen (c. 129–199 A.D.), who was born in ancient Pergamon near the Asklepion, is generally regarded as the most accomplished medical researcher of the Roman world, and some of his surgical procedures would not be seen again until modern times. He successfully conducted cataract surgeries by inserting a needle behind the lens of the eye in order to remove the cataract, and his described methods of preparing a clean operating theater reveal a keen awareness of contagion.1 While some of Galen’s practices and theories are still followed and praised by physicians today, others, such as his rejection of the stomach wall as having no role in digestion, have been proven by modern science to be …show more content…
However, Islamic scholars in the East were studying Greek medicine in depth.c Herbs such as henbane and Indian hemp (related to marijuana) were known for their anesthetic properties, and physicians stressed the effects of diet and environment on health. Perhaps one of the most famous eastern physicians was Abu ‘Ali al-Husayn ibn ‘Abd Allah ibn Sina (980–1037 A.D.), whose work The Canon of Medicine codified existing medical knowledge. The Canon includes descriptions, causes and diagnostic techniques for conditions such as rabies, stomach ulcers, different types of hepatitis, breast cancer, facial paralysis, diphtheria, leprosy, diabetes, cancer and gout. Later translations Latinized his name to Avicenna, and by the 13th century his work had become the standard medical reference text throughout Western Europe. Archaeology has further illuminated medical practices in the ancient world. Certain skeletons discovered during excavations demonstrate evidence of rather astonishing surgical successes. Perhaps the most startling evidence of sophisticated ancient surgery can be found in skulls that show signs of trepanation, a procedure still used today that is performed by drilling a hole into the skull to relieve intracranial pressure. Trepanated skulls