Alam Al-Din

Full name: 
Qaysar ibn Abi Al-Qasim ibn Mu-safir Al-Ashrafial-Hanafi
Arabic name: 
قيصر إبن ابي القاسم إبن معصفر الأشرفي الحنفي
Date of birth: 
1178

ʿAlam al-Dīn al-Ḥanafī,  (born 1178?, Egypt—died 1251, Egypt), 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.

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