Examples could be multiplied to show that language, long held to be the main, if not the sole, differentiating mark of ethnicity, is often irrelevant… - 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.

Against this view, it is still possible to identify some cultural continuities. Kitromilides himself alludes to some of them, when he mentions "inherited forms of cultural expression, such as those associated with the Orthodox liturgical cycle and the images of emperors, the commemoration of Christian kings, the evocation of the Orthodox kingdom and its earthly seat, Constantinople, which is so powerfully communicated in texts such as the Akathist Hymn, sung every year during Lent and forming such an intimate component of Orthodox worship . . ." (Kitromilides 1998, 31). There are other lines of Greek continuity. Despite the adoption of a new religion, Christianity, certain traditions, such as a dedication to competitive values, have remained fairly constant, as have the basic forms of the Greek language and the contours of the Greek homeland (though its centre of gravity was subject to change). And John Armstrong has pointed to the “precocious nationalism” that took hold of the Greek population of the Byzantine Empire under the last Palaeologan emperors and that was directed as much against the Catholic Latins as against the Muslim Turks—an expression of medieval Greek national sentiment as well as a harbinger of later Greek nationalism. But again, we may ask: was this Byzantine sentiment a case of purely confessional loyalty or of ethnoreligious nationalism? (See Armstrong 1982, I74—8I cf. Baynes and Moss 1969, 119—27, and Carras 1983.)

All this points to the importance of social memory; as the example of the relationship between modern and ancient Greeks shows, ethnies are constituted, not by lines of physical descent, but by the sense of continuity, shared memory and collective destiny, i.e. by lines of cultural affinity embodied in myths, memories, symbols and values retained by a given cultural unit of population.