The document discusses religious changes in Europe during the Protestant Reformation. It notes that Martin Luther wrote 95 theses criticizing the Catholic Church for indulgences and clergy wealth and privileges. Luther's ideas led to the formation of Lutheranism. Lutheranism then spread rapidly through Germany with the support of German nobles seeking to take lands from the Catholic Church. The document also briefly discusses the formation and spread of Calvinism under John Calvin and Anglicanism after Henry VIII separated from the Catholic Church. It concludes by outlining aspects of the Counter-Reformation undertaken by the Catholic Church to respond to the Protestant Reformation.