Spain was never conquered by Muslim
The territory know as the Iberian peninsula was indeed conquered for the most part but the people who lived there weren't the same as modern Spaniards. They were a caste of mixed race individuals who have nothing in common with what we refer to as Spaniards today. The real Spaniards lived far off in the mountain governed by neither the Goths nor the Muslims. There was no reconquista which is a 19th century invention but a brutal conquest by northern barbarians who replaced the original roman population.
All of thos is confirmed by science.
All of thos is confirmed by science.