Answer:
it paved the way for unification and consolidated Christianity in the region and Spain as a buffer for limiting Islam in Europe.
Explanation:
While the Arabs who practiced the Islamic religion enriched the cultural, social landscape of the Spanish kingdoms, they also created a element common that served as the justification for promotion a non existent notion of unity among the kingdoms of Castille, Aragon, etc.
This kingdoms had to give up their differences and formed a common frontline promoting the effort to expel the Muslims out of Spain and by doing so the notions for a Spanish sense of belonging or identity developed in the region. After 1492 a notion of Spanish identity began to emerge.
