Religious Situation in Europe
The Reformation began as an attempt to reform the Roman Catholic Church, by priests who opposed what they perceived as false doctrines and ecclesiastic malpractice—especially the teaching and the sale of indulgences or the abuses thereof, and simony, the selling and buying of clerical offices—that the reformers saw as evidence of the systemic corruption of the Church's Roman hierarchy, which included the Pope. In Germany, reformation ideals developed in 1520 when Martin Luther expressed doubts over the legitimacy of indulgences and the plenitudo potestatis of the pope. Martin Luther's excommunication on January 3, 1521, from the Catholic Church, was a main cause for the Protestant Reformation.
Martin Luther's spiritual predecessors included John Wycliffe and Jan Hus, who likewise had attempted to reform the Roman Catholic Church. The Protestant Reformation began on 31 October 1517, in Wittenberg, Saxony, where Martin Luther nailed his Ninety-Five Theses on the Power and Efficacy of Indulgences to the door of the Castle Church, in Wittenberg. The theses debated and criticized the Church and the Pope, but concentrated upon the selling of indulgences and doctrinal policies about purgatory, particular judgment, Catholic devotion to Mary, "The Mother of God", the intercession of and devotion to the saints, most of the sacraments, the mandatory clerical celibacy, including monasticism, and the authority of the Pope. In the event, other religious reformers, such as Ulrich Zwingli, soon followed Martin Luther's example.
The reformers soon disagreed among themselves and divided their movement according to doctrinal differences—first between Luther and Zwingli, later between Luther and John Calvin—consequently resulting in the establishment of different and rival Protestant Churches. Denominations, such as the Lutheran, the Reformed, the Puritans, and the Presbyterian. Elsewhere, the religious reformation causes, processes, and effects were different; Anglicanism arose in England with the English Reformation, and most Protestant denominations derive from the Germanic denominations. The reformers also accelerated the development of the Counter-Reformation by the Catholic Church.