I am really confused our teacher is letting us search on the internet but I have yet to find anything...What is a major social acheivement of Justinian?

Among Justinian's major accomplishments were: He extended the Byzantine Empire dramatically. Justinian extended the empire back into areas that had previously been part of the Western Roman Empire. He conquered Italy and much of the coast of North Africa and even reached as far as Spain.

Both countries had to aprove annexation.