How did nationalism and Enlightenment ideas drive the political revolutions of 1750 to 1900?
Topic 5.2 Nationalism and Revolutions in the Period from 1750 to 1900: the ways the rise of nationalism and the spread of Enlightenment ideas produced revolutions and movements to reshape political boundaries.
A focused answer to AP World History Topic 5.2, explaining how nationalism and Enlightenment ideas drove the Atlantic revolutions - American, French, Haitian, and Latin American - and the unifications of Italy and Germany, with the causes and consequences of each.
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What this topic is asking
Topic 5.2 covers the political revolutions of 1750 to 1900 and the nationalism that drove many of them. It asks you to explain how the spread of Enlightenment ideas (Topic 5.1) and the rise of nationalism produced revolutions and movements that reshaped political boundaries - the Atlantic revolutions (American, French, Haitian, Latin American) and the unifications of Italy and Germany - and to explain the causes and consequences of these upheavals.
Nationalism, the new idea
The Atlantic revolutions
A wave of connected revolutions reshaped the Atlantic world.
These revolutions shared Enlightenment ideology but differed sharply in who led them and what changed. American and Latin American revolutions were largely led by colonial elites and left social hierarchies, including slavery in some places, largely intact. The Haitian Revolution, led from below, destroyed slavery entirely.
Nationalism reshapes Europe
In the nineteenth century nationalism redrew the European map.
- Italian unification. A patchwork of small states was unified into the Kingdom of Italy by 1871, driven by nationalist leaders such as Garibaldi and Cavour.
- German unification. Many German states were unified into the German Empire in 1871, engineered by Otto von Bismarck through war and diplomacy.
- Strain on empires. Nationalism also threatened multiethnic empires like the Ottoman and Austro-Hungarian, where subject peoples demanded their own states, a tension that helped cause the First World War (Topic 7.2).
Weighing the causes
The revolutions had shared and local causes.
The shared cause was the spread of Enlightenment ideology, especially natural rights and popular sovereignty, which gave very different peoples a common language of revolt. The local causes varied: heavy taxation and lack of representation in the American colonies; financial crisis and inequality in France; the brutality of slavery in Haiti; and the exclusion of creole elites from power in Latin America. Strong answers weigh the shared ideology against these specific grievances.
Try this
Q1. Name the only successful large-scale slave revolt of this period, which founded the first independent Black republic. [Recall]
- Cue. The Haitian Revolution, founding Haiti.
Q2. Explain one way nationalism reshaped political boundaries in nineteenth-century Europe. [Short explanation]
- Cue. Nationalism unified many small states into the new nation-states of Italy and Germany by 1871, while also straining multiethnic empires whose subject peoples demanded their own states.
Exam-style practice questions
Practice questions written in the style of College Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AP 2021 (style)3 marksBriefly describe ONE cause of an Atlantic revolution in this period. Briefly explain ONE way nationalism reshaped a political boundary. Briefly explain ONE difference between two revolutions of this era.Show worked answer →
A Short Answer Question (SAQ), 3 points, one per bullet.
A. Cause: Enlightenment ideas of natural rights and popular sovereignty gave colonists and subjects a justification for overthrowing rulers who governed without consent, as in the American Revolution.
B. Nationalism reshaped a boundary: nationalist movements unified many small states into the new nation-states of Italy and Germany in the second half of the 1800s.
C. Difference: the Haitian Revolution was led by enslaved people who abolished slavery and won independence, while the American Revolution was led by colonial elites who kept slavery, so the social outcomes differed sharply.
Each bullet must be concrete and accurate.
AP 2023 (style)6 marksEvaluate the most significant cause of the Atlantic revolutions in the period c. 1750 to c. 1900.Show worked answer →
A Long Essay Question (LEQ), scored on the 6-point causation rubric.
Thesis (1): "The most significant cause of the Atlantic revolutions was the spread of Enlightenment ideas of natural rights and popular sovereignty, which gave colonists and subjects a shared justification for revolt, though local grievances over taxation, slavery, and exclusion were also essential."
Contextualization (1): situate the revolutions in a connected Atlantic world of Enlightenment print culture and growing colonial grievance.
Evidence (2): the American Declaration of Independence and natural rights; the French Declaration of the Rights of Man; the Haitian Revolution led by Toussaint Louverture; Bolivar and Latin American independence.
Analysis (2): explain HOW Enlightenment ideas turned grievances into revolutionary movements, then add complexity by weighing them against local causes - taxation in the colonies, slavery in Haiti, and creole exclusion in Latin America.
Related dot points
- Topic 5.1 The Enlightenment: the ways Enlightenment philosophy applied new ways of understanding and using reason to challenge traditional social, political, and religious authority.
A focused answer to AP World History Topic 5.1, explaining the Enlightenment: the eighteenth-century application of reason to society and government, the ideas of natural rights, the social contract, and popular sovereignty, and how those ideas challenged absolutism and inspired later revolutions and reform movements.
- Topic 5.3 Industrial Revolution Begins: the conditions in Western Europe, especially Britain, that allowed industrialization to begin and the early factory system to develop.
A focused answer to AP World History Topic 5.3, explaining why the Industrial Revolution began in Britain: its coal and iron, agricultural revolution, capital, colonies and markets, political stability, and access to resources, and how the factory system replaced the cottage economy.
- Topic 1.6 Developments in Europe from c. 1200 to c. 1450: the role of Christianity, the feudal and manorial systems, and the early growth of centralized monarchies and revived trade.
A focused answer to AP World History Topic 1.6, explaining the decentralized feudal and manorial systems of medieval Europe, the unifying role of the Catholic Church, and the early growth of centralized monarchies, towns, and revived trade by 1450.
- Topic 4.7 Changing Social Hierarchies from 1450 to 1750: how the new economic and political developments of this period changed social hierarchies, including the rise of new elites and the creation of new racial and social categories.
A focused answer to AP World History Topic 4.7, explaining how the new transoceanic economy reshaped social hierarchies between 1450 and 1750, including the rise of merchant and gentry elites, the creation of racial categories such as the casta system in the Americas, and continuities in existing hierarchies.
- Topic 7.1 Shifting Power after 1900: the collapse or transformation of land-based empires and the rise of new political ideologies and movements at the start of the twentieth century.
A focused answer to AP World History Topic 7.1, explaining the shift in global power after 1900: the collapse of the Qing, Ottoman, and Russian empires, the Russian and Chinese revolutions, and the rise of new ideologies like communism and the end of dynastic rule.
Sources & how we know this
- AP World History: Modern Course and Exam Description — College Board (2020)