United States History
United States History
This domain covers U.S. history from Indigenous societies and European colonization through the recent past, with emphasis on causation, continuity and change, and the Constitution’s role in national development. High-yield clusters are colonial regional economies, the Revolution and Founding, sectional conflict and Reconstruction, industrialization and reform, the New Deal, the Cold War, and the civil rights movement.
Core rules
- Colonial regions differed by labor systems and geography: New England town-based and family labor; the Chesapeake and Carolinas plantation economies dependent on enslaved labor; the Middle Colonies mixed agriculture and commerce.
- The Constitution emerged from compromises: the Great Compromise (bicameral Congress), Three-Fifths Compromise, and electoral college; Federalists supported ratification, Anti-Federalists demanded a bill of rights.
- Reconstruction amendments: 13th abolished slavery (except punishment), 14th established birthright citizenship, due process, and equal protection, 15th protected voting rights by race.
- Industrialization brought railroads, corporations, and immigration, and provoked Populist and Progressive reform: antitrust action, direct election of senators (17th), women’s suffrage (19th).
- The New Deal expanded federal responsibility; the Cold War produced containment, NATO, and domestic anticommunism; Brown v. Board (1954), the Civil Rights Act (1964), and the Voting Rights Act (1965) reshaped citizenship.
Worked example
A question asks which development most directly increased the sectional tension that led to the Civil War. The best answer ties a specific economic and political change to sectional conflict: the rapid expansion of cotton cultivation into new territories, which reinforced slavery’s profitability and made the question of slavery’s extension into western territories central to national politics. Reasoning: the Missouri Compromise, Compromise of 1850, Kansas-Nebraska Act, and Dred Scott all turned on slavery’s territorial status, so an answer that names only “states’ rights” in the abstract is weaker than one showing the slavery-extension mechanism.
Traps
Confusing the Declaration of Independence (1776) with the Constitution (1787); treating Reconstruction as ending in 1865 rather than 1877; mixing up the 14th and 15th Amendments; and assuming the New Deal ended the Depression rather than changing public expectations and institutions.