I want to know the answer to the following question:
What event in the year 1090 could have had an effect on Medieval Europe's embracing of the pointed arch?
All the background I'm provided with is that "Increasing military and cultural contacts with the Muslim world, including the Norman conquest of Islamic Sicily in 1090, the Crusades, beginning 1096, and the Islamic presence in Spain, may have influenced Medieval Europe's adoption of the pointed arch, although this hypothesis remains controversial.". Is that enough to answer the question?