Question: Though the Muslims couldn't take full control of Galicia, when was it that they invaded Spain?
Sentence: Later the Muslims invaded Spain (711), but the Arabs and Moors never managed to have any real control over Galicia, which was later incorporated into the expanding Christian Kingdom of Asturias, usually known as Gallaecia or Galicia (Yillīqiya and Galīsiya) by Muslim Chroniclers, as well as by many European contemporaries.
Answer in sentence: yes