The scriptorium at San Millán

The scriptorium at San Millán not only produced the first clear graphical appearance of the Spanish language, but also wrote some of the most detailed encyclopaedias that we know of from the early Middle Ages (10th and 11th centuries) in Iberia and Europe. It also gave rise to some of the most learned literature of the entire Middle Ages, written by Gonzalo de Berceo, the first Spanish poet of note.