Date: c. 762-766

Khatib al-Baghdadi (fl. eleventh century) writes that when the Abbasid caliph al-Mansur (r. 754-75) built the round city of Baghdad (Madinat al-Salam) he brought in a range of artisans … read more

Date: 836 and later

The historian and geographer al-Yaʿqubi (d. 897-98), records the creation of the new city of Samarra by caliph al-Muʿtasim (r. 833-42). Al-Yaʿqubi writes the caliph brought artisans … read more