 In the last years of the reign of Ferdinand III of Castile, Castilian began to be used for certain types of documents, and it was during the reign of Alfonso X that it became the official language.Henceforth all public documents were written in Castilian; likewise all translations were made into Castilian instead of Latin.At the same time, Catalan and Galician became the standard languages in their respective territories, developing important literary traditions and being the normal languages in which public and private documents were issued