Languages of Catalonia
There are four languages with official status in Catalonia (an autonomous community of Spain): Catalan; Spanish- which is official throughout Spain; Aranese, a dialect of Occitan spoken in the Aran Valley; and Catalan Sign Language. Many other languages are spoken in Catalonia as a result of recent immigration from all over the world.
Languages of Catalonia
The Spanish language developed from Vulgar Latin in the North of the Iberian Peninsula, expanding quickly to the South. It has lexical influences from Arabic and possible substrate influences from Basque and (to a lesser extent) Celtiberian. It has been the only official language in Spain for most periods since the eighteenth century.