Quick Facts
- Born:
- 1178?, Egypt
- Died:
- 1251, Egypt
Adding us as a Preferred Source tells Google you trust our content, so our articles show up more often in your Google Search, Discover feed, and AI Overviews.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
ʿAlam al-Dīn al-Ḥanafī
Egyptian mathematician, astronomer, and engineer
ʿAlam al-Dīn al-Ḥanafī (born 1178?, Egypt—died 1251, Egypt) was an Egyptian mathematician, astronomer, and engineer. He wrote a treatise on Euclid’s postulates, built water mills and fortifications on the Orontes River, and constructed the second-oldest existing Arabic celestial globe.
This article was most recently revised and updated by Encyclopaedia Britannica.
Discover the fascinating events that shaped the world, straight from our editors.
By clicking “Sign Up”, you consent to the Britannica
Privacy Policy
and
Terms of Use.