The reprint of the works of the outstanding Russian scientist-historian academician V.G. Vasilievsky is due to the recently increased interest in the history of the Byzantine Empire. The value of Vasilievsky's works for specialist historians prompts once again to recall the main scientific achievements of the scientist in this area. This edition is equipped with a personal index, the output data of publications referred to by V.G. Vasilievsky, a list of abbreviations of frequently mentioned works and publications.