Answer:
Justinian was the Byzantine Emperor from 527 to 565, during his rule he enacted reforms to reduce corruption and increase accountability. He was a prolific builder, and constructed dams, bridges, fortifications. All the elements of Justinian's passion came together when he rebuilt Hagia Sophia, it is one of the most famous cathedrals today. He is important because he reorganized the administration of the imperial government and sponsored the codification of laws which were known as Code of Justinian.