Just something of a minor idea I've been pondering over thanks to my Spanish culture class. What would a Spain without an Arab invasion and conquest develop like?
Personally, what little I've been able to dig up on Visigothic Spain leaves me with an impression that Spain under them was more culturally uniform than one would expect given Spain's current set-up. Much of the modern regional divisions of Spain, from language to culture, date back to the Arab invasion and its aftermath, where the areas not taken over by the Arabs became more isolated from each other and were forced to develop in different ways as they tried to reconquer their lands. With this in mind, I'd guess that a Spain that avoids Arab conquest is probably more culturally united than OTL, but that's all I've been able to figure out.
Would you guys happen to have any other ideas? How does a Visigothic-ruled Iberia change things? How is it changed, whether that be culturally or politcally or some other category I can't think of?