books.google.ru - Although ethnicity is a modern concept and would not have been recognized by the Byzantines, throughout its history the Byzantine Empire was a multi-ethnic state. The papers in this volume examine questions of the uniformity and separateness of the various Byzantine populations and the degree and mechanisms...http://books.google.ru/books/about/Studies_on_the_internal_diaspora_of_the.html?hl=ru&id=ohFJD_QT3E8C&utm_source=gb-gplus-shareStudies on the internal diaspora of the Byzantine Empire
