Answer:
Apostle Paul
Explanation:
One man, the apostle Paul, had enormous influence on Christianity's development. Paul preached in cities around the eastern Mediterranean. He stressed that Jesus was the son of God and that he had died for people's sins. Paul declared that Christianity was a universal religion.
The Apostle who can be said to have greatly influenced Christianity's development was Apostle Paul.
Even though he only became an Apostle after the death of Jesus Christ, Apostle Paul was hugely influential in the early church.
The letters he wrote to the various churches and his various trips, helped convert many to the Church.
Find out more on Paul at https://brainly.com/question/508307.
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