<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Reformation, specifically referred to as the Protestant Reformation, was a schism in Western Christianity initiated by Martin Luther and continued by John Calvin, Huldrych Zwingli, and other early Protestant Reformers in 16th - century Europe . It is usually considered to have started with the publication of the Ninety - five Theses by Martin Luther in 1517 and lasted until the end of the Thirty Years' War with the Peace of Westphalia in 1648 . </P> <P> Although there had been significant earlier attempts to reform the Catholic Church before Luther--such as those of Jan Hus, Peter Waldo, and John Wycliffe--Luther is widely acknowledged to have started the Reformation with the Ninety - five Theses . Luther began by criticising the sale of indulgences, insisting that the Pope had no authority over purgatory and that the Catholic doctrine of the merits of the saints had no foundation in the Bible . The Protestant Reformation, however, would come to incorporate doctrinal changes such as a complete reliance on Scripture as the only source of proper belief (sola scriptura) and the belief that faith in Jesus, and not good works, is the only way to obtain God's pardon for sin (sola fide). The core motivation behind these changes was theological, though many other factors played a part, including the rise of nationalism, the Western Schism that eroded loyalty to the Papacy, the perceived corruption of the Roman Curia, the impact of humanism, and the new learning of the Renaissance that questioned much traditional thought . </P>

Who were the main leaders of the reformation
find me the text answering this question