Ahmad al-Qalqashandi
Born on 1355
Died on 1418
Shihāb al-Dīn Abū ‘l-Abbās Aḥmad ibn ‘Alī ibn Aḥmad ‘Abd Allāh al-Qalqashandī al-Fazari or al-Qalqashandī;
(1355 or 1356 – 1418), was a medieval Egyptian encyclopedist, polymath and mathematician. A native of the Nile Delta, he became a Scribe of the Scroll (Katib al-Darj), or clerk of the Mamluk chancery in Cairo, Egypt. His magnum opus is the voluminous administrative encyclopedia Ṣubḥ al-Aʿshá.
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