As Pierre Riché points out, the expression "Carolingian Renaissance" does not imply that Western Europe was barbaric or obscurantist before the Carolingian era. The centuries following the collapse of the Roman Empire in the West did not see an abrupt disappearance of the ancient schools, from which emerged Martianus Capella, Cassiodorus and Boethius, essential icons of the Roman cultural heritage in the Middle Ages, thanks to which the disciplines of liberal arts were preserved. The 7th century saw the "Isidorian Renaissance" in the Visigothic Kingdom of Hispania in which sciences flourished and the integration of Christian and pre-Christian thought occurred, while the spread of Irish monastic schools (scriptoria) over Europe laid the groundwork for the Carolingian Renaissance.