Maybe this enigmatic people still think, generally, forming a unit with only circumstantial ethnic differences caused by the experiential situations to which they have been forced.
According to the Spanish Constitution, the Castilian is the official language for the entire country; also are official languages in their respective regions.
The Spanish population is predominantly Catholic. The country is divided into 13 ecclesiastic provinces (metropolitan seats) and 2 autonomous archbishoprics comprising 67 territorial dioceses and a personal (military).