ni akoole ninu ISO 3166-2, apa opagun ISO 3166 ti International Organization for Standardization (ISO) tejadesiwe to setumo awon amioro fun oruko awon ipinsabe koko awon orile-ede.ItokasiISO 3166.. 
The Byzantine Empire (or Byzantium) was the eastern Roman Empire during late Antiquity and the middle Ages, centered on the capital of Constantinople.. 