Since we talked about this in class, I thought I should post this article I found while looking for a paper topic. It covers the change of Baghdad through time under the Abbasid Caliphate. It shows the transition of the city founded by Al-Mansur. To the one that was sacked by the Mongols in 1258.

https://www.jstor.org/stable/25208155?Search=yes&resultItemClick=true&searchText=Abbasid&searchText=Baghdad&searchUri=%2Faction%2FdoBasicSearch%3FQuery%3DAbbasid%2BBaghdad&ab_segments=0%2Fbasic_SYC-4693%2Ftest&refreqid=search%3A0d8f799112625d61caf02a8047c88225&seq=1#metadata_info_tab_contents