Constructionists...are unable to grasp and credit the emotional depth of loyalties to historical nations and nationalisms. - Anthony D. Smith

For perennialists, too, the nation is immemorial. National forms may change and particular nations may dissolve, but the identity of a nation is unchanging. Yet the nation is not part of any natural order, so one can choose one's nation, and later generations can build something new on their ancient ethnic foundations. The task of nationalism is to rediscover and appropriate a submerged past in order the better to build on it.

Though Latin long held sway in Court and bureaucratic circles, the cultural cement of the empire’s core populations was Greek and its education was in the Greek classics and tongue. Imperial tradition, Christian Orthodoxy and Greek culture became even more the bases of Byzantium and her Hellenic community, after she had lost most of her western and Asiatic possessions in the seventh century — to Visigoths and then Arabs m Spain and North Africa, to the Lombards in much of Italy, to the Slavs in the Balkans and to Muslim armies in Egypt and the Near East. Political circumstances, and the resilience of Greek culture and Greek education, made her predominantly Greek in speech and character. After the sack of Constantinople in 1204 and the establishment of a Latin empire under Venetian auspices, the rivalry of the Greek empires based on Nicaea, Epirus and Trebizond to realize the patriotic Hellenic dream of recapturing the former capital further stimulated Greek ethnic sentiment against Latin usurpation. W1cn in the face of Turkith threats, the fifteenth-century Byzantine emperor, Michael Palaeologus, tried to place the Orthodox Church under the Papacy and hence Western protection; an inflamed Greek sentiment vigorously opposed his policy. The city’s populace in the fourteenth and fifteenth centuries, their Hellenic sentiments fanned by monks, priests and the Orthodox party against the Latin policies of the government, actually preferred the Turkish turban to the Latin mitre and attacked the urban wealthy classes. But the Turkish conquest and the demise of Byzantium did not spell the end of the Orthodox Greek community and its ethnic sentiment. tinder its Church and Patriarch, and organized as a recognized milliet of the Ottoman empire, the Greek community flourished in exile, the upper classes of its Diaspora assuming privileged economic and bureaucratic positions in the empire. So Byzantine bureaucratic incorporation had paradoxical effects: as in Egypt, it helped to sunder the mass of the Greek community from the state and its Court and bureaucratic imperial myths and culture in favour of a more demotic Greek Orthodoxy; but, unlike Egypt, the demise of the state served to strengthen that Orthodoxy and reattach to it the old dynastic Messianic symbolism of a restored Byzantine empire in opposition to Turkish oppression.

Greeks, Armenians, Jews, Persians, Chinese and Japanese could be cited as examples of ethnic continuity, since, despite massive cultural changes over the centuries, certain key identifying components—name, language, customs, religious community and territorial association—were broadly maintained and reproduced for millennia.