Who is one of the “giants” barack obama refers to in his nobel peace prize acceptance speech who received the prize before him?

hello there, can you add the "following" multiple choices

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.