Depth
At a glance
- Era
- The Mongol and Post-Mongol Era
- Region
- Persia & Central Asia
- Review
- Draft Completeness 1/5 · Help complete it
Summary
"Tahrir al-Majisti" (The Revision of the Almagest) by Nasir al-Din al-Tusi, a revision and commentary on the "Almagest" of Ptolemy. It has thirteen treatises divided into chapters, with diagrams and tables 1.
The digitised copy
The British Library holds a manuscript of the book under the number Add MS 23392. Qatar National Library has published it digitally, and it can be consulted free of charge. The colophon of the manuscript states that the completion of its diagrams took place in Qazvin in Jumada II 956 AH. This is the date of copying, not the date of the book's composition 2.
Sources
- Tahrir al-Majisti, British Library manuscript Add MS 23392 (digital copy from the Qatar National Library) , p.1
- Tahrir al-Majisti, British Library manuscript Add MS 23392 (digital copy from the Qatar National Library) , p.3
Cite this page
islam.museum contributors. “The Revision of the Almagest”. islam.museum, https://islam.museum/en/work/tahrir-al-majisti/. CC BY-SA 4.0. Last updated 2026-10-18.