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.. 
During most of its existìtì, it Remained one of the most powerful economic, cultural, and military forces in Europe, despite setmate and Territorial Losses, especially during the Roman-Persian and Byzantine-Arab wars.. 