Euro History
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AP European History — Cheatsheet

Formulas, exam-day tips, and key terms on one page.

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Key terms

Italian Renaissance — 14th-16th c. revival of classical (Greek/Roman) art and literature. Characterized by humanism, secularism, and individualism (e.g., Machiavelli, Michelangelo).
Peace of Westphalia (1648) — Ended the Thirty Years' War. Marked the end of major religious wars in Europe and established the modern concept of state sovereignty and balance of power.
Mercantilism — The theory that national wealth is a fixed stock of bullion, so states should maximize exports, minimize imports and hold colonies as captive markets. The economic logic behind the colonial system.
Glorious Revolution (1688) — Bloodless overthrow of James II in England. William and Mary accepted the English Bill of Rights, firmly establishing a constitutional monarchy.
Scientific Revolution — The seventeenth-century shift to explaining nature through observation, mathematics and experiment rather than authority. Its deepest change is in method — what counts as proof.
Enlightened absolutism — Rule by monarchs such as Frederick the Great, Catherine the Great, and Joseph II who adopted legal codification, toleration, and education reform. Significance: shows Enlightenment ideas being used to strengthen state efficiency and revenue while serfdom and noble privilege were preserved or extended.
French Revolution (1789) — Driven by Enlightenment ideas, famine, and financial crisis. Shifted from moderate constitutionalism to radical republicanism (Reign of Terror) to Napoleon's empire.
Congress of Vienna (1815) — Conservative peace settlement after Napoleon. Led by Metternich, it sought to restore the balance of power and suppress liberalism and nationalism.
Industrial Revolution (First) — Began in Britain (late 18th c.) fueled by coal and iron. Mechanized textiles and transportation, creating a new urban working class (proletariat) and bourgeois class.
Social Darwinism — 19th c. misapplication of evolutionary theory to human societies ("survival of the fittest"). Used to justify imperialism, racism, and extreme capitalism.
Realpolitik — Politics conducted on calculation of power and interest rather than ideology or sentiment. Bismarck and Cavour are the exemplars, and it marks the shift after 1848.
Treaty of Versailles (1919) — Ended WWI. Harshly punished Germany (Article 231 war guilt, reparations, demilitarization), creating economic and political instability that fueled the rise of Fascism.
Civic humanism — Renaissance conviction that classical learning should prepare citizens for active political life, exemplified by Leonardo Bruni in Florence. Significance: shifted elite education from theology toward rhetoric, history, and ethics, and supplied the intellectual self-image of republican Italian city-states.
Printing press (Gutenberg, c. 1450) — Movable metal type applied to European book production. Significance: cut the cost of texts dramatically, standardized vernaculars, made Luther’s pamphlet war possible, and allowed scientific and Enlightenment ideas to circulate faster than censors could suppress them.
Christian humanism (Erasmus) — Application of humanist philological method to scripture, notably Erasmus’s 1516 Greek New Testament and his satire In Praise of Folly. Significance: exposed errors in the Vulgate and mocked clerical abuse, preparing the ground for reform — hence the saying that Erasmus laid the egg Luther hatched.
Ninety-Five Theses (1517) and justification by faith — Luther’s attack on indulgences, grounded in the claim that salvation comes through faith alone by scripture alone. Significance: denied the sacramental and financial machinery of papal authority, and split Western Christendom permanently.
Calvinism and predestination — Calvin’s teaching in the Institutes that God has eternally elected the saved, developed in a disciplined theocratic Geneva. Significance: produced the most militant and internationally mobile branch of Protestantism, spreading to France, the Netherlands, Scotland, and England.
Council of Trent (1545–1563) — Catholic council that reaffirmed tradition alongside scripture, transubstantiation, and the seven sacraments while ending the sale of offices and mandating seminaries. Significance: made compromise with Protestantism impossible while genuinely reforming clerical practice.
Peace of Augsburg (1555) — Settlement allowing each German prince to choose Lutheranism or Catholicism for his territory — cuius regio, eius religio. Significance: legitimized religious division as a matter of princely sovereignty, but by excluding Calvinism it left the grievance that helped ignite the Thirty Years’ War.
Edict of Nantes (1598) and its revocation (1685) — Henry IV’s grant of limited religious and military rights to Huguenots, revoked by Louis XIV. Significance: the grant ended the French Wars of Religion by subordinating confession to state stability; the revocation exiled perhaps 200,000 skilled Huguenots and showed absolutism demanding uniformity.
Thirty Years’ War and the Peace of Westphalia (1648) — Conflict beginning in Bohemia that devastated the German lands and killed perhaps a third of their population, ended by a settlement recognizing Calvinism and state sovereignty. Significance: closed the era of European wars of religion and established the sovereign-state framework of international politics.
Commercial Revolution and mercantilism — Growth of joint-stock companies, banking, and state-directed trade policy aimed at accumulating bullion. Significance: financed exploration and colonization, tied state power to commercial monopoly, and provoked the free-trade critique later formulated by Adam Smith in 1776.
Versailles and French absolutism — Louis XIV’s palace and court system, paired with intendants in the provinces and Colbert’s mercantilist finance. Significance: neutralized the nobility by making status depend on royal favor, and became the model of absolute monarchy that other rulers imitated architecturally and politically.
English Bill of Rights (1689) — Statute conditioning the reign of William and Mary on parliamentary control of taxation, of peacetime standing armies, and of the succession. Significance: settled the seventeenth-century constitutional conflict in Parliament’s favor and created the model of limited constitutional monarchy.