History PhD student and Civ6 streamer @Paisley_Trees has made another video with her colleague Dr. Crow, this time focusing on the Abbasids.
They discuss how some of the used names, like for the unique ability, are rather generic, but many are grounded deeply in the Abbasid culture, like the "round city". The art for the mosque is apparently also non-contemporary, but other parts of the Civ are, such as the Mamluks.
If you are curious about more historical background, and how it is integrated into this civ, then have a look at the video.
For reference: Our Abbasid thread https://forums.civfanatics.com/threads/new-civ-game-guide-abbasid.692732/