How did Justinian I reshape the Roman Empire?

Justinian I ruled the Eastern Roman Empire from 527 to 565, pursuing an ambitious restoration of lost western territories and a sweeping rewrite of Roman law. His reign featured major military campaigns led by generals like Belisarius, cultural milestones such as the construction of the Hagia Sophia, and persistent internal religious friction. Ultimately, his legal codification and architectural legacy endured long after his western conquests.

What we know

• Justinian I served as Roman emperor from 527 to 565. [1, 2]
• His general Belisarius conquered the Vandal Kingdom in North Africa. [2]
• Justinian directed the uniform rewriting of Roman law known as the Corpus Juris Civilis. [2]
• His building program produced monumental works including the Hagia Sophia. [2]

Still open

• The sources do not elaborate on the full extent to which his western reconquests permanently secured the empire's financial future versus straining its resources.

Where to go next

• whoWho was Justin I?
• how it workedWhat was the Corpus Juris Civilis?
• a case in pointHow was the Hagia Sophia built?
• what caused itWhat caused the Byzantine-Sasanian wars?
• how we knowWho was the general Belisarius?
• an unexpected connectionHow did a pope come to be designated by Emperor Justinian?Pope Pelagius I was elected as the candidate of Emperor Justinian I, demonstrating direct imperial influence over the papacy despite initial resistance from the Western Church.

Sources

• [1]Justinian I (Wikidata Q41866) · CC0 1.0
• [2]Justinian I · CC BY-SA 4.0
• [3]Germanus (cousin of Justinian I) · CC BY-SA 4.0
• [4]Justin I · CC BY-SA 4.0
• [5]Pope Pelagius I · CC BY-SA 4.0