Philosophical Foundations of the American Revolution

By the end of this lesson, students will be able to:

• Identify the contributions of Locke, Montesquieu, Rousseau, and Voltaire to the political vocabulary the American Patriots adopted.
• Trace three landmarks of the English political tradition (Magna Carta, the Glorious Revolution, the English Bill of Rights of 1689) that colonists claimed as their inheritance.
• Account for the rhetorical and political impact of Thomas Paine's Common Sense in early 1776.
• Analyze the structure of the Declaration of Independence as a synthesis of natural-rights philosophy, a list of grievances, and a formal claim of sovereignty.
• Use Skill 2.B (Sourcing and Situation) to account for how the historical situation of a Patriot text shaped the audience it addressed and the case it made for independence.
• Account for how colonial views of government and the individual shifted in the years before the Revolution (LO 3.D).

The American Revolution was, before anything else, an argument over legitimate authority. By 1776, Patriot writers had assembled a coherent philosophical case that drew on three streams of eighteenth-century thought: the European Enlightenment, the English political tradition, and a colonial religious sensibility shaped by the Great Awakening. Each stream contributed a piece of the vocabulary that the Declaration of Independence would weave together (KC-3.2.I.A).

The European Enlightenment supplied the most important conceptual building blocks. John Locke, writing in his Second Treatise of Government (1689), argued that political authority is not granted by God to kings but is instead created by free individuals who consent to government in order to protect their natural rights to life, liberty, and property. When a government violates that trust, Locke wrote, the people retain the right to dissolve it and establish a new one. Montesquieu, in The Spirit of the Laws (1748), argued that liberty depended on the separation of legislative, executive, and judicial powers, an idea the framers of the federal Constitution would later make structural. Jean-Jacques Rousseau contributed the language of popular sovereignty and the general will, while Voltaire's defense of religious toleration and freedom of expression circulated widely in the colonial press. Patriot writers also drew on the Scottish Enlightenment, particularly Francis Hutcheson on the moral sense and Thomas Reid on common-sense reasoning, when they argued that ordinary citizens were capable of self-government (KC-3.2.I.A).

The English political tradition gave colonists a second, more concrete inheritance. The Magna Carta of 1215 had established that even the king is bound by law and that subjects could not be imprisoned without due process. The Glorious Revolution of 1688 deposed the Catholic James II in favor of William and Mary, confirmed parliamentary supremacy over the Crown, and produced the English Bill of Rights of 1689, which guaranteed subjects a list of liberties: the right to petition, freedom from cruel and unusual punishment, no taxation without parliamentary consent, and a ban on standing armies in peacetime without legislative approval. Colonists insisted that as British subjects they were full heirs to these guarantees, and that the post-1763 imperial program (Stamp Act, Townshend Acts, Coercive Acts) violated them. The argument that Parliament had broken its own constitution gave the colonial protest a legalistic edge that pure Enlightenment philosophy could not have provided alone.

A third inheritance came from the Great Awakening, the religious revival that had swept the colonies in the 1730s and 1740s. Itinerant preachers, including George Whitefield and Jonathan Edwards, taught that salvation was an individual covenant and that ordinary believers could read scripture for themselves without bowing to clerical authority. That habit of mind transferred easily to politics. If a believer could question a bishop, a subject could question a king (KC-3.2.I.A). The Awakening also seeded an evangelical conviction that the British colonies enjoyed a providential covenant of liberty, a sense of national mission that Patriot writers tapped repeatedly.

These three streams converged in a single pamphlet in January 1776. Thomas Paine, an English emigrant who had arrived in Philadelphia barely a year earlier, published Common Sense, a fifty-page argument that hereditary monarchy was illegitimate, that George III was a tyrant rather than the victim of bad ministers, and that an island could not, by any reasonable principle, govern a continent. Paine wrote in plain English, aimed at carpenters and farmers as much as at lawyers and clergy, and the pamphlet sold roughly 120,000 copies in its first three months in a colonial population of about 2.5 million. Common Sense reframed the dispute. Until early 1776, most colonial petitions still asked the king to restrain Parliament; after Paine, the question on the table was independence itself (KC-3.2.I.B).

Six months later, the Continental Congress made the case official. The Declaration of Independence, drafted by Thomas Jefferson and edited by John Adams and Benjamin Franklin, opened with a Lockean preamble: that all men are created equal, that they are endowed with unalienable rights to life, liberty, and the pursuit of happiness, and that governments derive their just powers from the consent of the governed. It then listed twenty-seven grievances against George III, casting the king (rather than Parliament) as the violator of those rights. The document closed with a formal declaration that the colonies were "free and independent States" with full sovereign powers to wage war, contract alliances, and conduct trade. The Declaration's preamble would be quoted at every later moment of American argument over inclusion: by abolitionists, by women's-rights conventions at Seneca Falls, by Lincoln at Gettysburg, and by civil-rights activists in the twentieth century (KC-3.2.I.B).

Underneath both documents lay a philosophical commitment to republicanism, the idea that political legitimacy flows from the consent of the governed and that public office is a trust rather than a possession. Republicanism implied a sharp rejection of monarchy. A king who claimed authority by birth was, by the standards of the new vocabulary, a usurper. Republicanism also made demands on citizens: a republic could survive only if its citizens cultivated civic virtue, watched their representatives closely, and were prepared to put the public good ahead of private interest. That rhetorical inheritance shaped the constitutional debates of the 1780s, the formation of the first political parties in the 1790s, and every subsequent American argument about what the government is for.

The philosophical case for independence also carried beyond the thirteen colonies. The Declaration's claim that any people, anywhere, may dissolve a government that violates their rights was an open invitation to imitation. Within fifteen years, French revolutionaries had adopted a Declaration of the Rights of Man and of the Citizen modeled openly on the American text. Within thirty years, enslaved Haitians had used the same vocabulary against French colonial slaveholders. Within fifty years, Latin American independence movements from Mexico to Argentina would cite the United States as the precedent for separating from European empire (KC-3.2.I.E). The Declaration's natural-rights language also seeded internal challenges to the new American order, including the post-Revolutionary abolition petitions and women's claims to expanded political roles that Lesson 6 will examine in detail (KC-3.2.I.C, KC-3.2.I.D).

The three excerpts below let students trace the philosophical lineage from Locke through Paine to the Declaration. Each is in the public domain and lives at a federal or major academic archive.

1. (Causation) Account for how Lockean natural-rights philosophy reached the colonial reading public. Through which channels (universities, pamphlets, sermons, newspapers, legal training) did Locke's vocabulary become available to ordinary colonists by the 1770s?
2. (Claims and Evidence) Compare the rhetorical strategy of Locke's Second Treatise with the rhetorical strategy of Paine's Common Sense. What kinds of evidence does each text rely on, and how does the choice of evidence reflect the audience each writer is trying to reach?
3. (Continuity and Change) Colonists insisted that as British subjects they enjoyed all the liberties guaranteed by Magna Carta and the English Bill of Rights of 1689. By 1776, they had concluded that securing those same liberties required independence from Britain. Account for the shift.
4. (Causation) Common Sense sold roughly 120,000 copies in three months. Account for the social and political conditions that allowed a single pamphlet to move so rapidly through the colonial population, and explain what this circulation tells you about the political culture of early 1776.
5. (Comparison) The Declaration claims that "all men are created equal." Examine the gap between that claim and the lived reality of women, enslaved people, and American Indians in 1776. Was the gap a contradiction inside the Declaration's logic, or a problem to be resolved later inside the Declaration's framework?

Draft alignment — pending educator review. AP USH codes correspond to the official College Board Course and Exam Description (Effective Fall 2023, Version 1). Statements below are paraphrased in the CountryReports voice; refer to the College Board's published CED for verbatim wording.