# al-Ma'mun

- id: al-mamun
- name in original script: المأمون
- dates: 786–833
- roles: patron

Seventh Abbasid caliph and the translation movement's most famous patron. Al-Khwarizmi dedicated the algebra to him; al-Hajjaj made his second Euclid and his Almagest under him. Later legend inflated his library into a formal academy.

## Crossings

- c. 813–833: Elements into Arabic (patron) [attested]
- 827–828: Almagest into Arabic (patron) [attested]

## Sources

- Gutas, Dimitri (1998). Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement in Baghdad and Early Abbasid Society.