This is not to deny for one moment either the enormous cultural changes undergone by the Greeks despite a surviving sense of common ethnicity or the cultural influence of surrounding peoples and civilizations over two thousand years. At the same time in terms of script and language, certain values, a particular environment and its nostalgia, continuous social interactions, and a sense of religious and cultural difference, even exclusion, a sense of Greek identity and common sentiments of ethnicity can be said to have persisted beneath the many social and political changes of the last two thousand years.