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Ṣūrat al-arḍ composed

تصنيف «صورة الأرض»

c. 833 CE · c. 218 AH† – c. 833 CE · c. 218 AH† †

† Hijri date derived by computation from the Gregorian/Julian date; it may differ from the transmitted date by a day or two.

Baghdad

Al-Khwārizmī wrote the Ṣūrat al-arḍ (Image of the Earth), giving coordinates of the known world's localities that corrected Ptolemy's Mediterranean length and Asian and African cities, and he helped build al-Maʾmūn's world map 1.

Depth

At a glance

Era
The Early Abbasid Caliphate
Region
Persia & Central Asia
Review
Draft Completeness 2/5 · Help complete it

In time

820830840850 c.
The Early Abbasid Caliphate

In space

Baghdad

Map: Natural Earth, public domain · places and route from the graph

The long-form text for this entry has not been written yet. The facts and connections below come from the museum's data.

Connections

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Had participant
al-Khwarizmi
Occurred at
Baghdad

People and things also explored

The Algebra composed· al-Khwarizmi· Baghdad· The Nizamiyya Madrasa of Baghdad· Bayt al-Hikma — the House of Wisdom· The 'Adudi Bimaristan· al-Bimaristan al-Muqtadiri· Bimaristan al-Sayyida

Sources

  1. Al-Khwārizmī — Encyclopaedia Britannica
Cite this page

islam.museum contributors. “Ṣūrat al-arḍ composed”. islam.museum, https://islam.museum/en/event/surat-al-ard-composed-833/. CC BY-SA 4.0. Last updated 2026-10-28.

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Time

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The Algebra composed

At the House of Wisdom in Baghdad under al-Maʾmūn, al-Khwārizmī composed his Algebra — rules and geometric demonstrations for solving linear and quadratic equations; its Latin translation gave Europe the word algebra.