Which roman contributed to the spread of christiantity?

I suppose the question is which Roman emperor contributed to the spread of Christianity. The answer is Constantine the Great.

Emperor Constantine was the 1st emperor to officially convert and embrace the Christianity and soon afterwards made it the official religion of the empire. Moreover, he gave Christians the Roman citizenship as well.

Explanation:

warfare was the primary means of cultural transmission in both regions.

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.