Indulgences – Payments to the Catholic Church for the reduction of punishment for sins, a major issue criticized by reformers.
Justification by Faith Alone (Sola Fide) – Martin Luther’s belief that salvation comes through faith, not good works.
Sola Scriptura – The Protestant belief that the Bible alone is the ultimate authority in religious matters, rather than the Pope.
Predestination – The Calvinist doctrine that God has already chosen who will be saved and who will be damned.
The Elect – Calvinist term for those chosen by God for salvation.
Huguenots – French Calvinists who faced persecution in Catholic France.
Puritans – English Protestants who sought to further reform the Church of England by removing Catholic elements.
Anabaptists – Radical Protestant sect that rejected infant baptism and believed in complete separation of church and state.
Act of Supremacy (1534) – Law passed by Henry VIII declaring the King as the head of the Church of England.
Council of Trent (1545–1563) – A Catholic response to the Reformation that reaffirmed Catholic doctrines, ended abuses, and emphasized education.
Jesuits (Society of Jesus) – A religious order founded by Ignatius of Loyola that focused on education, missionary work, and defending Catholicism.
Index of Prohibited Books – A list of books banned by the Catholic Church to prevent the spread of Protestant ideas.
Roman Inquisition – A Church court established to investigate and punish heresy.
Baroque Art – A dramatic, emotional artistic style used by the Catholic Church to inspire devotion during the Counter-Reformation.
Schmalkaldic League – An alliance of Lutheran princes against the Holy Roman Emperor.
Peace of Augsburg (1555) – Agreement allowing German princes to choose either Lutheranism or Catholicism for their states (Cuius regio, eius religio).
French Wars of Religion (1562–1598) – A series of conflicts between French Catholics and Huguenots.
St. Bartholomew’s Day Massacre (1572) – A Catholic attack on Huguenots in France, leading to widespread killings of Protestants.
Edict of Nantes (1598) – Issued by Henry IV of France, granting limited religious freedom to Huguenots while maintaining Catholicism as the official religion.
Thirty Years’ War (1618–1648) – A devastating war within the Holy Roman Empire between Catholic and Protestant states, later involving major European powers.
Defenestration of Prague (1618) – Protestant nobles in Bohemia threw Catholic officials out of a window, sparking the Thirty Years' War.
Peace of Westphalia (1648) – Treaty ending the Thirty Years' War, granting religious tolerance to Lutherans, Catholics, and Calvinists while weakening the Holy Roman Emperor.
Martin Luther Posts the 95 Theses (1517) – Luther criticizes indulgences and Church corruption, sparking the Reformation.
Diet of Worms (1521) – Holy Roman Emperor Charles V declares Luther an outlaw after he refuses to recant.
German Peasants’ War (1524–1525) – Inspired by Lutheran ideas, peasants revolt against feudal oppression, but Luther condemns them, and the rebellion is crushed.
Schmalkaldic Wars (1546–1555) – Conflict between Charles V and Lutheran princes, ending in the Peace of Augsburg.
Council of Trent (1545–1563) – The Catholic Church reaffirms traditional teachings, improves clergy education, and bans indulgence sales.
Formation of the Jesuits (1540) – Missionary and educational efforts to strengthen Catholic influence.
Expansion of the Roman Inquisition (1542) – Increased efforts to suppress Protestantism in Catholic territories.
French Wars of Religion (1562–1598) – Series of conflicts between Catholics and Huguenots, leading to Henry IV’s conversion to Catholicism.
St. Bartholomew’s Day Massacre (1572) – Thousands of Huguenots killed in France, worsening religious tensions.
Henry IV Issues the Edict of Nantes (1598) – Ends the French Wars of Religion, granting Huguenots religious freedom.
Thirty Years’ War Begins (1618) – Initially a religious conflict within the Holy Roman Empire, it expands into a broader European power struggle.
Peace of Westphalia (1648) – Ends the Thirty Years' War, establishing religious tolerance and weakening the Holy Roman Emperor’s authority.
Martin Luther (1483–1546) – German monk who initiated the Protestant Reformation with the 95 Theses.
John Calvin (1509–1564) – French theologian who founded Calvinism, emphasizing predestination and strict religious discipline.
Huldrych Zwingli (1484–1531) – Swiss reformer who rejected Catholic rituals and argued for a purely symbolic Eucharist.
Henry VIII (1491–1547) – English king who established the Church of England after being denied a divorce by the Pope.
Elizabeth I (1533–1603) – English queen who established the Elizabethan Settlement, blending Protestant doctrine with Catholic traditions.
Pope Paul III (1468–1549) – Initiated the Council of Trent to reform the Catholic Church and combat Protestantism.
Ignatius of Loyola (1491–1556) – Founder of the Jesuits, who emphasized education and missionary work.
Philip II of Spain (1527–1598) – A staunch Catholic monarch who led Spain in religious wars, including the attempted invasion of Protestant England (Spanish Armada, 1588).
Henry IV of France (1553–1610) – Originally a Huguenot, he converted to Catholicism to end the French Wars of Religion and issued the Edict of Nantes (1598).
Ferdinand II (1578–1637) – Holy Roman Emperor whose policies helped spark the Thirty Years’ War.
Gustavus Adolphus of Sweden (1594–1632) – A Protestant military leader in the Thirty Years' War, known for his advanced military tactics.
Cardinal Richelieu (1585–1642) – Chief minister of France who supported Protestants in the Thirty Years' War to weaken the Habsburgs.