Foundational U.S. Government, Legal Terms & Key Historical Eras

Suffrage

The right to vote in political elections.

Precedent

A legal decision or action that serves as an authoritative guide for future similar circumstances.

Tariff

A tax or duty imposed by a government on imported goods.

Ratification

Official approval or confirmation of a constitutional amendment, treaty, or agreement.

Initiative, Referendum, & Recall

Progressive reforms giving citizens direct political power—to propose laws (initiative), vote on proposed laws (referendum), and remove elected officials from office before their term ends (recall).

Reconstruction Era (1865-1877)

Period following the Civil War focused on rebuilding the United States.

13th, 14th, & 15th Amendments

The Reconstruction Amendments—abolished slavery (13th), granted citizenship and equal protection under the law (14th), and extended voting rights to African American men (15th).

Black Codes / Jim Crow Laws

State and local laws designed to limit African American freedom and enforce racial segregation in the South.

Freedmen's Bureau

Federal agency established to assist newly freed African Americans with education, medical care, and housing post-Civil War.

Sharecropping

An agricultural system where landowners allow tenants to use land in exchange for a portion of the crops produced, often locking poor farmers into a cycle of debt.

Manifest Destiny

The belief that the U.S. was divinely destined to expand westward to the Pacific Ocean.

Homestead Act (1862)

Federal law offering 160 acres of public land in the West to settlers who improved it over 5 years.

Dawes Act (1887)

Legislation aimed at assimilating Native Americans by breaking up tribal lands into individual family allotments.

Laissez-Faire

Economic policy where the government minimizes regulation and interference in private businesses.

Monopoly / Trust

Complete control of a product or service by a single company or combined board, eliminating market competition.

Nativism

Preferential treatment for native-born citizens combined with hostility toward immigrants.

Chinese Exclusion Act (1882)

The first federal law restricting immigration based specifically on race or nationality.

Social Darwinism

The theory that human groups and businesses are subject to the same laws of natural selection ('survival of the fittest').

Muckrakers

Reform-minded journalists and authors who exposed corporate corruption and social inequities.

Sherman Anti-Trust Act / Clayton Anti-Trust Act

Federal legislation aimed at breaking up illegal monopolies and preventing anti-competitive business practices.

16th, 17th, 18th, & 19th Amendments

Progressive Era reforms—federal income tax (16th), direct election of Senators (17th), prohibition of alcohol (18th), and women's suffrage (19th).

Imperialism

Policy of extending a country's power and influence through diplomacy, military force, or acquisition of territory.

Yellow Journalism

Sensationalized and exaggerated newspaper reporting designed to attract readers and shape public opinion (notably during the Spanish-American War).

Roosevelt Corollary

Extension of the Monroe Doctrine asserting the U.S. right to act as an 'international police power' in the Western Hemisphere.

Open Door Policy

U.S. proposal advocating equal trading access for all nations in China.

Zimmermann Telegram

Intercepted German message proposing a military alliance with Mexico, pushing the U.S. into WWI.

Fourteen Points & League of Nations

President Woodrow Wilson's plan for post-WWI peace (Fourteen Points) and the international peace organization created by it (League of Nations).

Isolationism

Foreign policy strategy of avoiding alliances, international political commitments, and foreign wars.

Great Migration

Mass movement of millions of African Americans from the rural South to urban centers in the North and West.

Red Scare

Widespread hysteria regarding potential communist revolution or radical subversion in the U.S.

Harlem Renaissance

Flowering of African American artistic, literary, and musical expression centered in New York during the 1920s.

New Deal

President Franklin D. Roosevelt's domestic programs aimed at Relief for the unemployed, Recovery for the economy, and Reform of financial systems.

Social Security Act

New Deal legislation establishing old-age pensions, unemployment insurance, and disability benefits.

Appeasement

Policy of granting concessions to aggressor nations (like Nazi Germany) in hopes of maintaining peace.

Lend-Lease Act

Program allowing the U.S. to supply military arms and equipment to Allied nations prior to formal entry into WWII.

Executive Order 9066

Presidential order authorizing the forced relocation and internment of over 120,000 Japanese Americans.

Manhattan Project

Secret U.S. government research project that developed the world's first atomic bombs.

Containment

Truman Doctrine strategy aimed at preventing the global expansion of Soviet communism.

Marshall Plan

U.S. financial aid package to rebuild Western European economies after WWII to ward off communist influence.

Domino Theory

Belief that if one nation fell to communism, neighboring countries would inevitably follow.

McCarthyism

Practice of launching public allegations of disloyalty or treason without sufficient evidence, driven by Senator Joseph McCarthy.

Brinkmanship

Policy of pushing international tension to the brink of nuclear war to force an opponent to back down.

Détente

Policy of relaxing political tensions between the U.S. and communist powers (Soviet Union and China) during the 1970s.

Civil Disobedience

Nonviolent refusal to comply with unjust laws as a form of political protest (e.g., sit-ins, Freedom Rides).

Civil Rights Act of 1964 & Voting Rights Act of 1965

Federal landmark laws prohibiting discrimination based on race, color, religion, sex, or national origin (1964) and banning racially discriminatory voting practices (1965).

Great Society

President Lyndon B. Johnson's suite of domestic programs targeting poverty and racial injustice (e.g., Medicare, Medicaid, Head Start).

Stagflation

Economic state marked by stagnant growth, high unemployment, and rising inflation (prominent in the 1970s).

Reaganomics

Supply-side economic policies emphasizing tax cuts, deregulation, and reduced domestic government spending.

NAFTA (North American Free Trade Agreement)

1994 accord reducing trade barriers between the U.S., Canada, and Mexico.

Patriot Act

Post-9/11 legislation expanding law enforcement surveillance and counterterrorism powers.