The Siege of Baghdad, which lasted from January 29 until February 10, 1258, entailed the investment, capture, and sacking of Baghdad, the capital of the Abbasid Caliphate, by Ilkhanate Mongol forces and allied troops. The Mongols were under the command of Hulagu Khan, brother of the khagan Möngke Khan, and had intended to further extend their rule into Mesopotamia but not to directly overthrow the Caliphate. Möngke, however, had instructed Hulagu to attack Baghdad if the Caliph Al-Musta'sim refused Mongol demands for his continued submission to the khagan and the payment of tribute in the form of military support for Mongol forces in Iran.

Hulagu had begun his campaign in Iran with several offensives against Nizari groups, including the Assassins, whose stronghold of Alamut his forces seized. He then marched on Baghdad, demanding that Al-Musta'sim accede to the terms imposed by Möngke on the Abbasids. Although the Abbasids had failed to prepare for the invasion, the Caliph believed that Baghdad could not fall to invading forces and refused to surrender. Hulagu subsequently besieged the city, which surrendered after 12 days. During the next week, the Mongols sacked Baghdad, committing numerous atrocities and destroying the Abbasids' vast libraries, including the House of Wisdom. The Mongols executed Al-Musta'sim and massacred many residents of the city, which was left greatly depopulated. The siege is considered to mark the end of the Islamic Golden Age, during which the caliphates had extended their rule from the Iberian Peninsula to Sindh, and which was also marked by many cultural achievements.... More • http://en.wikipedia. ... %281258%29 View • Books • Images • Videos • Search Related • Wars • Baghdad • Iraq • Islam • Middle Ages • Mongols • All Events • 13th Century