Muhammad ibn Ahmad al-Khwarizmi
Encyclopedia
Abū ʿAbdallāh Muḥammad ibn Aḥmad ibn Yūsuf al-Kātib al-Khwārizmī, also referred to as al-Balkhī, was a tenth century Persian
Persian people
The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...

 encyclopedist and the author of the early encyclopedia Mafātīḥ al-ʿulūm (“Key to the Sciences”) in the Arabic language
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

.

Gerlof van Vloten, the editor of Mafātīḥ al-ʿulūm 1895 publication in Leiden, mentions in a preface to Mafātīḥ al-ʿulūm that nothing is known about al-Khwārizmī except his name and that he is also known as al-Balkhi, but Hossein Khadiv Jam, the Persian translator of Mafātīḥ al-ʿulūm mentions that after a lot of searches he has found that al-Khwārizmī "was born in Balkh
Balkh
Balkh , was an ancient city and centre of Zoroastrianism in what is now northern Afghanistan. Today it is a small town in the province of Balkh, about 20 kilometers northwest of the provincial capital, Mazar-e Sharif, and some south of the Amu Darya. It was one of the major cities of Khorasan...

, lived in Nishapur
Nishapur
Nishapur or Nishabur , is a city in the Razavi Khorasan province in northeastern Iran, situated in a fertile plain at the foot of the Binalud Mountains, near the regional capital of Mashhad...

, worked as a clerk in the Samanid
Samanid
The Samani dynasty , also known as the Samanid Empire, or simply Samanids was a Persian state and empire in Central Asia and Greater Iran, named after its founder Saman Khuda, who converted to Sunni Islam despite being from Zoroastrian theocratic nobility...

 court for a while, and has authored the book Mafātīḥ al-ʿulūm, one of the oldest Islamic encyclopedias, by the request of Abul-Hossein Atba, a vizier of Nuh II
Nuh II of Samanid
Nuh II was amir of the Sāmānids . He was the son of Mansur I.-Beginning and Middle of Reign:Having ascended the throne as a youth, Nuh was assisted by his mother and his vizier Abu'l-Husain 'Abd-Allah ibn Ahmad 'Utbi. Sometime around his ascension, the Karakhanids invaded and captured the upper...

, in the Arabic language."

Further reading

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