"Muslim world" is somewhat misleading glamorizing generalization in all such statements. Pretty much all examples which are used as a proof of the MW comparativ

"Muslim world" is somewhat misleading glamorizing generalization in all such statements. Pretty much all examples which are used as a proof of the MW comparatively advanced stage at early medieval times come from Iran/Persia, and Middle East. Both were very much advanced well-before Arab conquests, and simply continued to be so. There were many other parts of MW which were much below that level, or which to tge contrary experienced devastation, and decline as a result of the conquest. The Christendom was very uneven too, of course. And lots if people lived in mud huts in both realms. Also, blaming Mongols as if they were the sole destroyers is absolutely incorrect.