What do you mean when you say they were unable to build domes? https://en.wikipedia.org/wiki/History_of_medieval_Arabic_and_Western_European_domes https://en.w

What do you mean when you say they were unable to build domes? https://en.wikipedia.org/wiki/History_of_medieval_Arabic_and_Western_European_domes https://en.wikipedia.org/wiki/History_of_medieval_Arabic_and...