Source / Medical encyclopaedia

The Canon of Medicine

Al-Qanun fi al-tibb, composed by Ibn Sina in the early eleventh century, organised medical principles, drugs, diseases, and compound remedies into an influential five-book synthesis.

The Canon is best read as a transmitted work rather than a single object: manuscripts, abridgements, commentaries, translations, printed editions, teachers, and readers continually remade its authority.

Reading the source

Order was one of the Canon's medical arguments.

Its five-part structure made a large body of inherited and contemporary knowledge teachable, searchable, and open to commentary across different intellectual settings.

A close reading should identify which book, chapter, language, manuscript, or printed edition is being used. The work encountered by an Arabic copyist, a Latin university reader, and a modern translator was not materially identical. Marginal notes, abridgements, diagrams, glossaries, and editorial choices could direct attention differently, making transmission part of the source rather than noise around an original text.

General principles establish a framework

The first book addresses elements, temperaments, faculties, causes, signs, regimens, and broad therapeutic principles. It gives readers a conceptual system through which the later books can be understood.

Drugs and diseases become organised knowledge

The second book treats simple drugs; the third moves through diseases from head to toe; the fourth gathers conditions not confined to one organ; and the fifth concerns compound remedies. Organisation joined theory to practical reference.

Readers made the work durable

Marginal notes, epitomes, supercommentaries, and translations show the Canon being questioned and explained, not merely copied. Gerard of Cremona's Latin translation helped it enter European university and print cultures.

Transmission and limits

No surviving copy is the Canon in isolation.

Every manuscript embodies particular choices of script, layout, correction, annotation, and completeness. The National Library of Medicine's MS A 53, copied in Timurid Iran in the early fifteenth century, is one of relatively few complete surviving copies and contains 492 folios.

Latin translations and printed editions extended the work's reach while changing terminology and reading contexts. Frequent European publication does not mean uniform acceptance: curricula, commentators, and practitioners selected and contested its claims.

The Canon chiefly preserves learned medicine. It is much less direct as evidence for patients' voices, household treatment, or the many oral and practical traditions that did not enter elite written collections.

Across the collection

Continue from the Canon

Ibn Sina

Follow the physician and philosopher whose medical synthesis emerged from a much wider intellectual career.

History of medical education

See how authoritative texts, lectures, examinations, apprenticeship, and clinical instruction shaped medical learning.