Caption:
Treaty of 815. 30-year peace agreement signed in Constantinople between the Bulgarian Khan Omurtag (814-831) and the Byzantine Emperor Leo V "the Armenian" (813-820). Detail of a column bearing the text of the peace treaty between Bulgaria and Byzantium. From Sechishte village (Suleiman kyuoi), Shumen region, Bulgaria. Around year 815. National Archaeological Museum. Sofia. Bulgaria.