(2,385 words)

(often written al-K̲h̲uwārizmī ), Abū D̲j̲aʿfar Muḥammad b. Mūsā . mathematician. astronomer and geographer, who utilised the Arabic language. He lived in the first half of the 3rd/9th century (ca. 184-ca. 232/800-47), and should not be confused with two other important persons with the same nisba [q.vv.]. We know that in his youth, during the caliphate of al-Maʾmūn, he worked in the Bayt al-Ḥikma [q.v.] of Bag̲h̲dād, but we know very few other biographical details. However, his main works are well known to us, since many of them were translated into Latin i…

Cite this page
Vernet, J., “al-K̲h̲wārazmī”, in: Encyclopaedia of Islam, Second Edition, Edited by: P. Bearman, Th. Bianquis, C.E. Bosworth, E. van Donzel, W.P. Heinrichs. Consulted online on 22 October 2018 <>
First published online: 2012
First print edition: ISBN: 9789004161214, 1960-2007

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