Where did the Castillan language originate?
central Spain
northern Spain
southern Spain

CENTRAL SPAIN

Explanation:

Castilian Spanish originated (after the decline of the Roman Empire) as a continuation of spoken Latin in several areas of northern and central Spain. Eventually, the variety spoken in the city of Toledo around the 13th century became the basis for the written standard.

Answer

northern Spain

Castilian, which contains many words of Arabic origin, began as a dialect spoken in northern Spain. It became the language of the court of the kingdoms of Castile and León in the 12th century, and the dominance of Castile within Spain allowed it to become the official language of the state.