Al-Ma'mun

Al-Ma'mun

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 September 786 – 9 August 833), better known by his regnal name al-Ma'mun (Arabic: المأمون, lit. 'the Reliable'), was the seventh Abbasid caliph, who reigned from 813 until his death in 833. His leadership was marked by the power and prosperity of the Abbasid Caliphate, al-Ma'mun promoted the Graeco-Arabic translation movement, the flowering of learning and the sciences in Baghdad, and the publishing of al-Khwarizmi's book now known as "Algebra", making him one of the most important caliphs in the Islamic Golden Age. He is also known as a proponent of the rational Islamic theology of Mu'tazilism. Al-Ma'mun succeeded his half-brother al-Amin after a civil war, much of his reign was spent on peace campaigns. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Al-Ma'mun is the 735th most popular politician (up from 804th in 2019), the 22nd most popular biography from Iraq (up from 26th in 2019) and the 10th most popular Iraqi Politician.

Al-ma'mun was most famous for his efforts to make the Islamic world more tolerant and open to other religions. He sponsored debates between Muslim scholars and Christian, Jewish, and Zoroastrian leaders. He also invited the Persian scholar Abu Ali al-Hussein ibn Ishaq al-Kindi to Baghdad to translate Greek texts into Arabic.