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).
The capital and largest city of Spain is Madrid (population in 1998, 2,881,506 inhabitants), which is also the capital of the autonomous community of Madrid.
Spain's population in 1991 was 38,872,268 inhabitants (1991 census); in 2001 the estimated population stood at 40,037,995 inhabitants, with an average density of about 79 inhabitants / km².
The Spanish people are a mixture of indigenous peoples of the Iberian peninsula with others that were successively conquering its territory, occupying it for different periods of time.