Abū al-ʿAbbās Abd Allāh ibn Hārūn al-Maʾmūn (Arabic: أبو العباس عبد الله بن هارون الرشيد, romanized: Abū al-ʿAbbās ʿAbd Allāh ibn Hārūn ar-Rashīd; 14...

Muhammad al-Jawad was the son of Ali al-Rida, the eighth of the Twelve Imams. In 817, the Abbasid caliph al-Ma'mun (r. 813–833) summoned al-Rida to Khorasan...

al-Ma'mun died unexpectedly on campaign in August 833, al-Mu'tasim was thus well placed to succeed him, overriding the claims of al-Ma'mun's son al-Abbas...

civil war by his half-brother, al-Ma'mun. Muhammad, the future al-Amin, was born in April 787 to the Abbasid caliph Harun al-Rashid (r. 786–809) and Zubayda...

in the Arabic language. During the reign of the seventh Abbasid caliph al-Ma'mun (r. 813 – 833 AD), it was turned into a public academy and a library....

accession, his son al-Ma'mun was born, and al-Amin some little time later: the latter was the son of Zubaida, a granddaughter of al-Mansur (founder of...

brothers al-Amin and al-Ma'mun over the succession to the throne of the Abbasid Caliphate. Their father, Caliph Harun al-Rashid, had named al-Amin as the...

Abu al-Ala Idris al-Ma'mun (Arabic: أبو العلا المأمون إدريس بن المنصور; Abū Al-`lā Al-Mā'mūn Idrīs ibn Al-Manṣūr; died 16 or 17 October 1232) was an Almohad...

was a period of religious persecution instituted by the Abbasid caliph al-Ma'mun in 833 AD in which religious scholars were punished, imprisoned, or even...

served under al-Ma'mun during the Fourth Fitna and led the armies that would defeat al-Amin, making al-Ma'mun the caliph. Tahir bin al-Husayn was then...

Islamic historian Al-Maqrizi (1364–1442) compiled lore about the Great Pyramid in his Al-Khitat. In addition to reasserting that Al-Ma'mun breached the structure...

al-Ma'mun where religious scholars were punished, imprisoned, or even killed unless they conformed to Mu'tazila doctrine, until it was reversed by al-Mutawakkil...

just founded the library of the Bayt al-Ḥikmah. But al-Nadim suspected al-Jāḥiẓ's claim that the caliph al-Ma’mūn had praised his books on the imamate...

Al-Qasim al-Ma'mun ibn Hammud (Arabic: القاسم المأمون بن حمّود, died 1036) was an Arab Caliph of Córdoba in Muslim Spain for two periods, 1018 to 1021...

Upon Al-Amin's death, Al-Ma'mun became Caliph. Al-Ma'mun extended the Abbasid empire's territory during his reign and dealt with rebellions. Al-Ma'mun had...

(Pakistan) , between 810 and 835 in Iraq during the reign of al-Ma'mun and continued to the era of al-Mu'tasim. The Rebellion began from the Zutt tribe of Jats...

Al-Abbas ibn al-Ma'mun (Arabic: العباس بن المأمون) (died 838 CE) was an Abbasid prince and general, the son of the Abbasid caliph al-Ma'mun (r. 813–833)...

al-Amir and al-Afdal's chief secretary, al-Ma'mun al-Bata'ihi, instead. Al-Amir and al-Bata'ihi moved quickly to forestall a succession by one of al-Afdal's...

erupted after Harun's death, siding with al-Amin against his half-brother al-Ma'mun (r. 813–833). After al-Ma'mun's victory he went into hiding, but eventually...

Wisdom.: 14  The House of Wisdom was established by the Abbasid Caliph al-Ma'mūn. Al-Khwārizmī studied sciences and mathematics, including the translation...

considers it possible that Ali was instead born to Umm al-Fadl, a daughter of the Abbasid caliph al-Ma'mun (r. 813–833), though this marriage is often considered...

city by the caliph al-Ma'mun. An Alid by birth, Ibrahim was one of the eighteen or nineteen sons of the seventh Shi'ite imam Musa al-Kazim (d. 799), and...

who served under Caliph al-Ma'mun (r. 813–832). He played a crucial role in the civil war between al-Ma'mun and his brother al-Amin (r. 809–813), and was...

– but Abdallah al-Ghalib II, a son of Al-Ma'mun who now also claimed the throne, managed to hold it between 1606 and 1609. Al-Ma'mun himself, meanwhile...

of his uncle, caliph al-Ma'mun, who ruled until his death in 833. According to the account of al-Tabari, on his deathbed al-Ma'mun dictated a letter nominating...

caliphs visited Jerusalem or commissioned work on the al-Aqsa Mosque, though Caliph al-Ma'mun (r. 813–833) ordered significant work elsewhere on the...

large shrine. Al-Rida was contemporary with the Abbasid caliphs Harun al-Rashid (r. 786–809) and his sons, al-Amin (r. 809–813) and al-Ma'mun (r. 813–833)...

Baghdad Tower (Al-Ma'mun) (Arabic: برج بغداد), previously called International Saddam Tower (Arabic: برج صدام الدولي), is a 204 m (669 ft) TV tower in...

Mohammed esh Sheikh el Mamun also spelled Muhammad al-Shaykh al-Ma'mun, (b. 1566 – d. 1613) among other transliterations; also known as Abu Abdallah Mohammed...

the Abbasid caliphs al-Ma'mun (r. 813–833) and al-Mu'tasim (r. 833–842). On account of his learning and aptitude for study, al-Ma'mun appointed him to the...