JOSEPHUS, or JOSEPHUS BYZANTINUS, a Byzantine writer who lived in the middle of the tenth century, is the author of a Greek history which he wrote by order of the emperor Constantine VII. This history begins with the year 813 A.D., is entitled Βασιλείας Βυζάντιον, and embraces the reigns of Leo V. the Armenian, Michael II. the Stammerer, Theophilus, Michael III., and Basil I. the Macedonian, who died in 886. The work of Genesis is considered of importance as containing the events of a period of Byzantine history which is elsewhere very scantily found, though it is but a poor compilation. At Leipzig, a MS. of this work was discovered in the sixteenth century, and attracted the attention of scholars. The first edition of Genesis was published at Venice in 1733, folio, with the title, Josephi Genesii de Rebus Constantinopolitanis, &c. Libri IV., with a Latin translation by Bergler. The best edition, however, is by Lachmann, in the Bonn edition of the Byzantines, 8vo, 1834.

Cave, Hist. Lit.; Fabric., Bibl. Graec., vol. vii.; Hamberger, Nachrichten von den vornehmsten Schriftstellern, vol. iii.