ABU AL-QASIM

born c. 936, , near Crdoba died c. 1013 also spelled Abul Kasim, in full Abu al-Qasim Khalaf ibn 'Abbas az-Zahrawi, Latin Albucasis Islam's greatest medieval surgeon, whose comprehensive medical text, combining Middle Eastern and Greco-Roman classical teachings, shaped European surgical procedures until the Renaissance. Abu al-Qasim was court physician to the Spanish caliph 'Abd ar-Rahman III an-Nasir and wrote At-Tasrif liman 'ajaz'an at-Ta'alif, or At-Tasrif ("The Method"), a medical work in 30 parts. While much of the text was based on earlier authorities, especially the Epitomae of the 7th-century Byzantine physician Paul of Aegina, it contained many original observations, including the earliest known description of hemophilia. The last chapter, with its drawings of more than 200 instruments, constitutes the first illustrated, independent work on surgery. Although At-Tasrif was largely ignored by physicians of the eastern Caliphate, the surgical treatise had tremendous influence in Christian Europe. Translated into Latin in the 12th century by the scholar Gerard of Cremona, it stood for nearly 500 years as the leading textbook on surgery in Europe, preferred for its concise lucidity even to the works of the classic Greek medical authority Galen.