The Enlightenment

Ethan Taylor
8 min read
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AP World History: Modern - The Enlightenment & Revolutions Study Guide
Hey! Let's get you prepped for the exam. We're going to break down the Enlightenment and its impact, making sure you're not just memorizing facts, but really understanding how these ideas shaped the modern world. Let's do this!
๐ก Reason and Individualism Gain Traction: The Enlightenment
The Enlightenment (18th century) was a HUGE deal. It shifted thinking from tradition and religion to reason, individualism, and skepticism. This period laid the groundwork for modern democracy and human rights. It's a major topic, so let's dive in!
Central Ideas of the Enlightenment
- Reason over Revelation: People started using logic and observation to solve problems instead of relying on religious dogma. Think of it as humanity's 'lightbulb moment' ๐ก. They began to ask 'why?' instead of just accepting 'because'.
- Tabula Rasa: The idea that people are born as a "blank slate" (thanks, Locke!). This means that your experiences and environment shape who you become, not some pre-determined destiny. This idea is foundational for equality.
- Natural Rights: Locke argued that everyone has inalienable rights: life, liberty, and property. These are not given by governments but are inherent to being human. If a government fails to protect these rights, the people have the right to revolt!
- Social Contract: The idea that people give up some individual freedoms to live in a society with a shared authority or government. This government exists to serve the people and protect their natural rights.
Locke's Rights: Remember LLP - Life, Liberty, and Property. These are the natural rights that Locke said everyone is born with. Think of them as your basic human 'starter pack'!
These ideas are not just abstract concepts; they directly challenged the old order of absolute monarchies and divine right. This is why the Enlightenment is so important for understanding the revolutions that followed.

John Locke: A key figure whose ideas on natural rights and government heavily influenced the Enlightenment and subsequent revolutions.
New Ideas Challenge Old Ideas
- The Enlightenment promoted questioning traditional authority and social hierarchies. This led to challenges to patriarchy, slavery, and monarchy.
- These challenges created tension and conflict, sometimes leading to revolutions. Think of it as a societal 'shake-up' as people started demanding change.
Nationalism and States and Empires
- Nationalism: Loyalty and devotion to one's nation. It's a sense of shared identity and pride.
- Nationalism can be a force for unity, but it can also lead to conflict. It played a huge role in the revolutions and state-building of this era.
- The desire for national unity and independence fueled the creation of states like Italy and Germany in the late 1800s, and also inspired revolutionary movements like the American and Haitian Revolutions.
Key Philosophers
Let's meet the rockstars of the Enlightenment:
- Thomas Hobbes: Believed the natural state of humanity was chaos and that people needed a strong government to maintain order. He's the 'tough love' guy of the Enlightenment.
- John Locke: (Remember him?) Natural rights and the social contract were his jam. He's the 'people power' guy.
- Baron de Montesquieu: Advocated for the separation of powers and checks and balances in government to prevent tyranny. He's the 'balance is key' guy.
Montesquieu's Motto: Think "Separate to Stay Safe". His ideas on the separation of powers were all about preventing any one part of the government from becoming too powerful.
- Voltaire: Championed freedom of religion, freedom of speech, and separation of church and state. He's the 'free speech' guy.
- Jean-Jacques Rousseau: Expanded on the social contract, emphasizing the importance of the common good and the will of the people. He's the 'voice of the people' guy.
- Adam Smith: Father of capitalism and free markets. He believed that individual self-interest benefits society. He's the 'invisible hand' guy.
- Thomas Paine: A key figure in the American Revolution, arguing for independence from Britain in his pamphlet "Common Sense". He's the 'revolution' guy.

Baron de Montesquieu: His ideas on the separation of powers are fundamental to modern democratic governments.
Enlightenment & Reform Movements
- Enlightenment ideas inspired marginalized groups to demand equality. This included enslaved people, women, and serfs.
- Abolitionism: The movement to end slavery was directly inspired by Enlightenment ideals of equality and natural rights.
- Women's Rights: Women began to demand greater equality and challenge traditional gender roles. The Seneca Falls Convention (1848) was a key moment, with women rewriting the Declaration of Independence to include women.
Seneca Falls: Remember the phrase "all men and women are created equal" from the Declaration of Sentiments. This highlights the direct link between Enlightenment ideas and the women's suffrage movement.
Religion, New Ideas, & the Enlightenment
- Many Enlightenment thinkers embraced Deism, believing in a creator who established natural laws but doesn't intervene in daily life. Think of it as a 'hands-off' creator.
- Deism was a major change from traditional religious ideas, emphasizing reason over faith.
Enlightenment -ISMs
Enlightenment -ISMs | |
---|---|
Empiricism | knowledge from observation and experiments, rather than religious |
Socialism | the public / the workers should own the means of production |
Classical Liberalism | reflected enlightenment ideas pushing back on traditional politics, society, and economics |
Classical Conservatism | natural social order, belief in traditional monarchies & nobility, unapologetically elitist |
Nationalism | intense loyalty to others who speak your language and/or share your culture |
Utopian Socialism | ideal societies designed to maximize harmony - shared ownership, positive workplaces, equal rights |
Feminism | belief that womenโs rights are human rights |
Abolitionism | movement to end slavery and extend rights |
Zionism | desire for Jewish homeland in the Middle East |
Anti-Semitism | hostility toward Jews |
Connect the Dots: Remember how these '-isms' relate to each other and to the Enlightenment. For example, how did Enlightenment ideals of equality contribute to the rise of feminism and abolitionism? This kind of analysis will score you big points on the exam!
Final Exam Focus
Okay, you've got this! Here's what to focus on for the exam:
- High-Priority Topics: The Enlightenment, its key thinkers, and its impact on revolutions and reform movements are crucial. Pay special attention to the concepts of natural rights, the social contract, and nationalism.
- Common Question Types: Expect multiple-choice questions on key figures and ideas, short answer questions comparing different Enlightenment thinkers, and free-response questions analyzing the impact of the Enlightenment on various societies.
- Time Management: Don't spend too long on any one question. If you're stuck, move on and come back to it later. Focus on answering all parts of the question to maximize your score.
- Common Pitfalls: Don't just memorize names and dates. Focus on understanding the ideas and how they influenced historical events. Avoid vague generalizations; be specific and provide evidence.
Avoid the Trap: Don't just list facts. Explain how and why things happened. For example, don't just say "Locke believed in natural rights." Explain what those rights are and how they impacted political thought.
Practice Questions
Let's test your knowledge. Remember, practice makes perfect!
Practice Question
Multiple Choice Questions
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Which of the following best describes the central idea of the Enlightenment? (A) The importance of tradition and religious authority (B) The emphasis on reason, individualism, and skepticism (C) The acceptance of absolute monarchy (D) The belief in divine right
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Which Enlightenment philosopher is most associated with the concept of natural rights? (A) Thomas Hobbes (B) Baron de Montesquieu (C) John Locke (D) Adam Smith
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The Seneca Falls Convention of 1848 is most closely associated with which of the following movements? (A) Abolitionism (B) Utopian Socialism (C) Feminism (D) Zionism
Short Answer Question
Briefly explain how the ideas of the Enlightenment influenced the development of nationalism.
Free Response Question
Analyze the extent to which the Enlightenment was a turning point in world history. In your response, be sure to discuss at least TWO specific examples of how Enlightenment ideas influenced political, social, or economic developments.
Scoring Rubric for FRQ
- Thesis (1 point): Presents a thesis that makes a historically defensible claim and responds to all parts of the prompt.
- Contextualization (1 point): Describes a broader historical context relevant to the prompt.
- Evidence (2 points): Provides specific examples of how Enlightenment ideas influenced political, social, or economic developments.
- Analysis and Reasoning (2 points): Explains how the evidence supports the argument and demonstrates an understanding of historical causation.
- Complexity (1 point): Demonstrates a nuanced understanding of the topic by considering multiple perspectives or contradictory evidence.
Alright, you've got this! You're armed with knowledge, strategies, and a positive mindset. Go out there and crush that AP World History exam! If you need to review any section, just use the anchor tags above to jump to the right section! You're ready to rock! ๐

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