Answer:
Justinian expanded the Byzantine Empire through means of war and the conquering other lands. The additions of the former Roman provinces of Italia, Baetica, and Africa Proconsularis expanded the Byzantine Empire to it's largest point in history.
Explanation:
During his reign, Justinian managed to seize areas the Roman Empire had lost to foreign invaders, rebuild Hagia Sophia, increase silk production, expand the Empire's art trade and strengthen the Orthodox Christian church policy. In addition, his strict taxation laws saw the Empire's annual revenue increase.
