Which missionary spread christianity across the roman empire?

Paul

Explanation:

It is from the death of Jesus that the whole tradition that created Christianity was created. It was primarily the work of the apostles, who were responsible for spreading the new doctrine, emphasizing Peter - appointed by Jesus as the founder of his church - and Paul, who gave Christianity a universal meaning, making it accessible to all the pagan (non-Christian) peoples, discharacterizing it as the privilege of a people supposedly elected by God and becoming the main missionary who spread Christianity through the Roman empire

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