Final answer:
Justinian I's impact on the Byzantine Empire through law and architecture.
Explanation:
Justinian I left his mark on the Byzantine Empire in two significant ways:
- He created a code of law for the empire known as the Justinian Code, which served as the basis for European law.
- He sponsored extensive architectural projects, such as the construction of the Hagia Sophia, showcasing his authority and close relationship with the Church.
These actions highlighted his efforts in both the religious and secular realms, shaping the empire's legal and architectural landscapes.
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