Another jewel of Abbasid architecture is the Mustansiriya Madrasa. Established by Caliph al-Mustansir in it is one of the oldest Islamic universities in the world and managed to survive the Mongol invasion.
https://flic.kr/p/bkoXoo | Al Mustansiriya5 | Mustansiriya Madrasah (Arabic,المدرسة المستنصرية) is a historical building in Baghdad, Iraq. It was the premises of one of the oldest Islamic universities in the world, established in 1227 as a Madrasah by the Abbasid Caliph al-Mustansir making it one of the oldest universities in the world. It is located on the left bank of the Tigris River, the building survived the Mongol invasion of 1258, and has been restored.
Folio from a Mu'nis al-Abrar fi Deqa'iq al-Ash'ar (Free Man's Guide to the Subtleties of Poetry) by Badr al-Din Jajarmi (d. The Zodiac Constellation of Pisces, the moon, and two registers of birds; reverse: text: verses of poem