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Accession of al-Ma'mun

Type Event Region West Asia Time 813–819

After the Abbasid civil war ended in 813, al-Ma'mun was acclaimed caliph in Khorasan, ruling from Merv before entering Baghdad in 819 and opening a r…

Timeline

  1. 813Merv · MaryAfter Baghdad's fall in 813, al-Ma'mun formally received oaths of allegiance at Merv in Khorasan and was acclaimed Abbasid caliph. He appointed Tahir as eastern military commander and used Merv as his de facto administrative center, postponing his westward move.
  2. 814–818Iraq · IraqAl-Ma'mun sent forces to crush remaining resistance in Iraq and dealt with al-Amin's former followers and court factions. Over several years he consolidated control over the Tigris-Euphrates valley, prepared to move the capital to Baghdad, and began implementing new administrative and religious policies.
  3. 819Baghdad · BaghdadIn 819 al-Ma'mun led his army into Baghdad, reestablishing the imperial capital in Iraq. There he established his court, promoted the translation movement and scholarly patronage, and began adjusting religious and tax policies, opening the core of al-Ma'mun's reign.

Sources