"The Italian trade routes that covered the Mediterranean and beyond were also major conduits of culture and knowledge. The recovery of lost Greek texts, which had been preserved by Arab scholars, following the Crusader conquest of the Byzantine heartlands revitalized medieval philosophy in the Renaissance of the 12th century. Additionally, Byzantine scholars migrated to Italy during and following the Ottoman conquest of the Byzantines between the 12th and 15th centuries, and were important in sparking the new linguistic studies of the Renaissance, in newly created academies in Florence and Venice. Humanist scholars searched monastic libraries for ancient manuscripts and recovered Tacitus and other Latin authors. The rediscovery of Vitruvius meant that the architectural principles of Antiquity could be observed once more, and Renaissance artists were encouraged, in the atmosphere of humanist optimism, to excel the achievements of the Ancients, like Apelles, of whom they read."
We need a revival.