Byzantine Empire Βασιλεία Ῥωμαίων Basileía Rhōmaíōn Imperium Romanum
Capital | Constantinople (330–1204, 1261–1453)
Common languages | Late Latin, Koine Greek (395–610) Medieval Greek (610–1453)
Religion | Christianity (Eastern Orthodox) (tolerated after the Edict of Milan in 313; state religion after 380)
Government | Republican monarchy[better source needed]Absolute monarchy
Notable emperors |
• 395–408 | Arcadius
• 527–565 | Justinian I
• 610–641 | Heraclius
• 717–741 | Leo III
• 976–1025 | Basil II
• 1081–1118 | Alexios I Komnenos
• 1259–1282 | Michael VIII Palaiologos
• 1449–1453 | Constantine XI
Historical era | Late Antiquity to Late Middle Ages
• First division of the Roman Empire (diarchy) | 1 April 286
• Founding of Constantinople | 11 May 330
• Final East–West division after the death of Theodosius I | 17 January 395
• Nominal end of the Western Roman Empire | 25 April 480
• Fourth Crusade; establishment of the Latin Empire | 12 April 1204
• Reconquest of Constantinople by Palaiologos | 25 July 1261
• Fall of Constantinople | 29 May 1453
• Fall of Trebizond | 15 August 1461