Luther did not *found* Protestantism unlike Constantine who founded Catholicism.
And there is a big part of your problem. You are assuming too much instead of reading what boatbums posted and learning the truth.
Class, this is todays project: Look for Luther here...
https://en.wikipedia.org/wiki/List_of_English_Bible_translations
Luther came 100 years after John Hus. Hus was more of a founding father of the Faith than Luther. Hus lived in what is today The Czech Republic.
He was burned at the stake by the Catholic Church for preaching in a language that the people spoke and urging people to read the scriptures for then in their own language. He had also spoken out against indulgences and selling the grace of God. The Catholic Church had demanded he come to the Council of Constance in 1415 and they guaranteed he would return safely. They burned him at the stake.
Hus defended Wycliffe and his writings. The church had condemned anyone who read Wycliffe’s writings
Before the flames took his life, Hus proclaimed that liberty and spiritual reform would flourish despite his execution. Hus was followed by John Comenius who fled the persecution of the church and established a Christian community in Germany called The Moravian on the property of Nikolai’s Von Zinzendorf.
Before lighting the flames, they demanded Hus renounce his teachings. He replied “My Lord Jesus Christ was bound with a harder chain than this for my sake. Why should I be ashamed of this rusty one? I never preached any doctrine from an evil tendency and what I taught with my lips I now seal with my blood.”
Constantine did not “found” the Catholic Church; it had been in existence since 33 AD and miraculously became the dominant Faith in all of the Empire. Many souls were saved because the name of Jesus was now known by a large portion of the world.
By the way, Constantine ruled from Byzantium and partook of Eastern Christian tradition and theology. So maybe he actually founded the Eastern Orthodox Church. ;)