During the Reformation, the main Protestantisms found were: Lutheran, Reformed, Anabaptist and Anglican. There are many countries fighting against the Roman Catholic Church, such as France, England, etc. These five important and fundamental doctrines are the reason for the Protestant Reformation. “Sola Scriptura” “Sola Gratia” “Sola Fide” “Solus Christus” “Soli Deo Gloria, for the glory of God alone” This is the biggest mistake made by the Roman Catholic Church. We must learn from this and love God, follow his words