Answer:
- He created a code of law for the empire.
- He ordered the construction of Hagia Sophia.
Step-by-step explanation:
Emperor Justinian of the Byzantine empire will always be mentioned as one of their most prominent emperors for his actions while he sat on the throne. One such action was the creation of the Code of Justinian which was a collection of legal codes that helped the empire in being governed better.
Justinian ordered that the Hagia Sophia be built as well. At the time, it was one of the largest churches in the world and became a hallmark of the Byzantine empire. It was however, converted to a mosque when the Ottomans defeated the Byzantines.