# James Lind and PMC commentaries print the Canon’s observational rules as a case-writing method

Date: 2007

## The fact

The 2007 James Lind / PMC cluster emphasises identity of the drug, observation in a natural state, and related cautions — a completed modern commentary on a medieval method heading. Lost personal case-notes mentioned in the vita are not reconstructed here. The method as printed is observational, not a randomised trial.

## Context

Humoral theory still frames the cases. Split depletion.

[Avicenna](/people/avicenna) is not the sole author of every later object, law, or museum label that uses the name. Shared work with courts, excavators, printers, spouses, officials, and later states does not erase a documented role, and it does not make an ancient person the signer of a twentieth-century statute.

## Evidence and sources

The named official or archival page and the independent publisher independently describe this instrument.

Official or archival record: James Lind Library — Ibn Sina’s Canon: rules for assessing the effects of drugs (https://www.jameslindlibrary.org/articles/ibn-sinas-canon-of-medicine-11th-century-rules-for-assessing-the-effects-of-drugs/; James Lind Library).

## Significance

Printed observational rules are a clinical-method path, not a recovered 1020 notebook.

Printed observational rules are a clinical-method path, not a recovered 1020 notebook.

## What is established and what is not

Established as a dated public record of this instrument.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

## People

- Avicenna: https://factrail.ai/people/avicenna

## Drivers

- Health-System Capacity: https://factrail.ai/drivers/health-system-capacity

## Sources

- https://pmc.ncbi.nlm.nih.gov/articles/PMC2642865/
- https://www.jameslindlibrary.org/articles/ibn-sinas-canon-of-medicine-11th-century-rules-for-assessing-the-effects-of-drugs/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/av-observational-case-method