Ibn Sina (Avicenna)
Persian polymath whose "Canon of Medicine" was the standard medical text in Europe and the Islamic world for 600 years.
Who or what
Abu Ali al-Husayn ibn Abdullah ibn Sina (980–1037), known in the West as Avicenna, was a Persian polymath.
He wrote 450 works across philosophy, medicine, astronomy, logic, and psychology; about 240 survive.
Why it mattered
Ibn Sina systematized all of Greek medical knowledge and added his own clinical observations into a single coherent framework.
His "Floating Man" thought experiment anticipated Descartes' "Cogito" by six centuries.
Key works and moments
The Canon of Medicine discussed health, disease, medicines, and regimen, including the role of diet and exercise.
His "Book of Healing" was a philosophical and scientific encyclopedia covering logic, physics, mathematics, and metaphysics.
Further detail
The Canon organized medicine into: general principles, simple drugs (materia medica), diseases by body part, systemic conditions, and compound remedies.
He distinguished mediastinitis from pleurisy and described over 700 drugs with their properties and dosages.
Legacy
The Canon was translated into Latin in the 12th century and remained a required text at European medical schools until the 1650s.
His distinction between essence and existence influenced both Islamic and Christian scholastic philosophy.
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Assembled from the ReLU.chat curated knowledge base. These explanations are concise on purpose; check the sources for anything important.