Answer:
In the early sixteenth century the CORRUPTION AND POWER of the catholic church caused a rebellion now known as the REFORMATION
Step-by-step explanation:
The Protestant Reformation happened in the 16th century in the Catholic Church. It was caused by the corruption of the Catholic Church, and lead some people like Erasmus, Huldrych Zwingli, Martin Luther and John Calvin to try to stop it. This caused a schism in the church, resulting in Catholic and Protestant churches. The posting of the Ninety Five theses (A list of propositions for academic disputation which argued that the Church should not sell indulgences) at Wittenberg by Martin Luther is considered as the start of the Protestant Reformation, which happened in 1517.