Spain's Islamic past became a major concern in this period and historical writing served as the site for a complex negotiation of identity. Historians and antiquarians used a range of strategies to re-appropriate the meaning of medieval Islamic heritage as befitted the new identity of Spain as a
Catholic monarchy and empire. On the one hand, the monuments' Islamic origin was subjected to historical revisions and re-identified as Roman or Phoenician. On the other hand, religious forgeries were invented that staked claims for buildings and cities having been founded by Christians prior to the
arrival of the Muslims in Spain. Islamic stones were used as core evidence in debates that shaped the early development of archaeology, and they also became the centre of a historical controversy about the origin of Spain as a nation as well as its ecclesiastical history.