The eastern Roman Empire from late antiquity to the fall of Constantinople.
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Overview
The Byzantine Empire was the eastern Roman Empire, centred on Constantinople and governed in Greek for much of its history. Its people normally understood themselves as Romans.
Imperial survival depended on diplomacy, taxation, armies, fortified cities and religious authority as borders repeatedly changed.
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The essential guide
01
Rome in the east
Constantinople became an imperial capital in the fourth century. Justinian's sixth-century conquests and law code expressed Roman universal claims.
02
Faith, court and society
Orthodox Christianity shaped political legitimacy, art and conflict. Iconoclasm, monasticism and relations with Rome and neighbouring churches generated debate.
03
Crusade and conquest
The empire recovered from repeated crises, but the Fourth Crusade captured Constantinople in 1204. A restored state survived until Ottoman conquest in 1453.
04
Rome after antiquity
The people now called Byzantine generally understood their state as the Roman Empire. The modern label is useful but can conceal continuity in law, government and political identity.
Court histories need to be balanced with archaeology, seals, coins, church records and sources produced by neighbouring societies. Religious controversy was also political and social rather than purely theological.
Chronology
Key dates
Constantinople dedicated
Constantine established a new imperial capital.
Justinian's reign
Law codification, building and reconquest marked the period.
Iconoclast controversies
Imperial religious policy contested sacred images.
East–West schism
A long process of division acquired a symbolic date.
Fourth Crusade
Crusaders captured and looted Constantinople.
Byzantine restoration
Michael VIII recovered the capital.
Ottoman conquest
Mehmed II ended the empire.
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Questions and debates
Why call the empire Byzantine if its people called themselves Roman?
How did religion structure imperial power?
Why did Constantinople survive so many crises?
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Essential stories
Begin with the foundations, then move into the events, people and debates that add detail and complexity.