Jesus said that His diciples would teach the world about God.
Well according to the bible it was Jesus
They helped natives learn Christianity
Kings and Monasteries helped to spread Christianity.
Paul
Paul of Tarsus, who was previously known as Saul spread Christianity as the first Christian missionary, or person who spreads their belief to non-believers. He travelled across the Roman Empire, sending Christian messages to gentiles and non-Jewish communities as well as to Jews. This allowed more people to follow the faith. He preached about Christianity in new areas where no one had preached before, and established Christianity there.
Kings and Monasteries helped to spread Christianity.
Emperor Constantine
Costantine
Lutheran Christianity and Protestant Christianity.
clovis helped spread christianity by making it the only legal religion
They helped natives learn Christianity
it was a religious movement and helped brake away from Christianity and create new beliefs.