Mongol Forces Sack Baghdad, Ending the Abbasid Caliphate
On February 10, 1258, Mongol armies under Hulagu Khan captured Baghdad after a brutal siege, bringing down the Abbasid Caliphate, a center of Islamic political power and scholarship. The city, once famed for its House of Wisdom and glittering libraries, was devastated in systematic looting and destruction described in chilling detail by contemporaries. Caliph al-Musta'sim was executed, and Mongol authority was imposed across Mesopotamia. The fall of Baghdad reshaped power dynamics in the Middle East and stands as a grim marker of how fragile even the most sophisticated urban cultures can be in wartime.