Byzantine Empire
The medieval continuation of the Roman Empire, centered on Constantinople, that endured from late antiquity until the city’s Ottoman conquest in 1453.
Constantinople: A city founded as Byzantium and made the capital of the Roman Empire by Constantine I in 330. Its harbors, walls, and location made it the empire’s political and strategic center.
Late antiquity: The transitional period between classical antiquity and the early Middle Ages, conventionally dated from the third to eighth centuries. The empire’s institutions and culture took shape during this transformation.
Justinian I: Byzantine emperor from 527 to 565 who pursued reconquest, legal codification, and major building projects. His reign became a defining effort to restore Roman power across the Mediterranean.
Nika riots: A violent uprising in Constantinople in 532 against Justinian I’s government. The revolt nearly toppled Justinian and prompted a decisive imperial response.
Roman identity in Byzantium: The continuing self-identification of Byzantine subjects and rulers as Romans. The empire’s inhabitants understood their state as Roman, not as a successor named Byzantium.
Byzantine bureaucracy: The imperial offices and administrative practices through which Byzantine rulers governed territories and collected resources. Officials translated imperial authority into taxation, law, and provincial government.
Diocletian: Roman emperor from 284 to 305 who reorganized imperial government and introduced the Tetrarchy. His reforms helped establish administrative patterns inherited by the later eastern empire.
Theodora: Byzantine empress and influential political adviser to Justinian I. Her role in imperial politics was especially visible during the Nika revolt.
Byzantine reconquest of North Africa: The campaign led by Belisarius that ended Vandal rule in North Africa in 533–534. It demonstrated the reach of Justinian’s attempt to recover former Roman territories.
Byzantine Greek: The medieval form of Greek used across the Byzantine Empire, especially in administration, literature, and worship. Greek became the empire’s dominant language while Roman political identity endured.