- Inception
- 17 January 395, 330, 286, 285
- Population
- 17000000
- demonym
- bizánci, Byzantin, Byzantine, bizantí, bizantina, bizantino, bizantina, Bizancimperiano, romà d'Orient, romana d'Orient, ромеи, بيزنطي
- described by source
- The Catholic Encyclopedia, The Nuttall Encyclopædia, Small Brockhaus and Efron Encyclopedic Dictionary, Jewish Encyclopedia of Brockhaus and Efron, Old Book of Tang, New Book of Tang, History of Song, History of Ming, Brockhaus and Efron Encyclopedic Dictionary, The New Student's Reference Work, Granat Encyclopedic Dictionary, Small Brockhaus and Efron Encyclopedic Dictionary
- dissolved, abolished or demolished date
- 29 May 1453
- native label
- Imperium Romanum, Βασιλεία Ῥωμαίων, Romania, Ῥωμανία
- participant in
- Ottoman Wars in Europe, Arab–Byzantine wars, Byzantine–Bulgarian Wars, Byzantine–Sassanian Wars, Byzantine–Norman Wars, Byzantine–Lombard Wars, Crusades, Rus'–Byzantine wars, Siege of Constantinople, Siege of Tbilisi, Siege of Alexandria, Veneto-Byzantine War