AP U.S. History Unit 4 (1800-1848) Comprehensive Notes

AP U.S. History Unit 4 Notes (1800-1848)

Main Themes

  • Expanding Role in World Affairs: Shift in foreign policy and U.S. presence internationally.
  • Societal and Economic Transformation: Changes during the early Republic affecting various aspects of life.
  • Democratic Impulses: Evolving nature of democracy, emphasizing how more citizens sought political representation.

Jeffersonian Presidency

  • Election of Thomas Jefferson (1800): Marked a significant political shift from Federalist to Democratic-Republican control.
  • Debate between Democratic-Republicans and Federalists: Focused on foreign relations and the scope of federal power.

Foreign Relations

  • Barbary Pirates: U.S. ships attacked due to the cessation of tribute payments. Jefferson initially tried to negotiate, but eventually dispatched the Navy to protect U.S. merchant ships.

Federal Power and the Constitution

  • Democratic-Republicans: Advocated for strict constructionism (federal power limited to Constitution).
  • Federalists: Believed in loose constructionism, allowing broader interpretation of the Constitution.

The Louisiana Purchase (1803)

  • Negotiation with Napoleon: Jefferson authorized $15 million for the territory; despite strict constructionism, justified the purchase for agrarian expansion and U.S. influence.
  • Lewis and Clark Expedition: Explored and mapped the new territory, enhancing geographic knowledge and relations with Native Americans.

Judicial Review

  • Marbury v. Madison (1803): Established the Supreme Court's authority to review laws and deemed the Judiciary Act unconstitutional, marking the rise of judicial power.
  • McCulloch v. Maryland (1819): Established federal supremacy over state law and reinforced the power of the federal government.

War of 1812

  • Causes: British impressment of American sailors, trade restrictions, and conflicts with Native Americans.
  • Consequences: Increased nationalism, demise of the Federalist Party, and initiation of economic reforms (Henry Clay’s American System).

Economic Reforms

  • Henry Clay's American System: Included funding for internal improvements, protective tariffs to promote U.S. industry, and re-establishing a national bank.

Expansion and Slavery**

  • Missouri Compromise (1820): Maintained balance between slave and free states; established the 36°30' line for future states.
  • Talmadge Amendment: Attempt to prohibit slavery in Missouri, causing significant political conflict.
  • Expansion of Territory: Establishment of U.S.-Canadian border, acquisition of Florida through Adams-Onís Treaty (1819).

Market Revolution

  • Technological Advances: Innovations in agriculture (cotton gin), manufacturing (interchangeable parts), and transportation (canals, railroads) fostered economic interdependence.
  • Urbanization: Growth of industrial cities and immigrant populations, leading to changing demographics and challenges.

Social Changes

  • Cult of Domesticity: Idealization of women's roles as homemakers and moral guardians, contrasting with the harsh realities faced by lower-class women needing to work.
  • Democratization of Politics: Growth of suffrage, particularly post-Panic of 1819, as working men and small farmers demanded voting rights.

Second Great Awakening

  • Religious Revival: Characterized by camp meetings open to all, promoting egalitarian principles and moral reform.
  • American Reform Movements: Intersections between abolitionism and women’s rights, as many advocates for equality in both spheres were often the same.

Cultural Developments

  • Transcendentalism: Emphasized individual thought and nature, with figures like Emerson and Thoreau,
  • Mormonism: Founded by Joseph Smith, included unique beliefs that led to social tensions and migrations.

Abolition Movement**

  • Early Developments: Initial efforts by free Blacks, Quakers; later momentum from figures like William Lloyd Garrison and the formation of the American Anti-Slavery Society.

Conclusion

  • Significant societal transformations and the interplay of economic, religious, and political changes molded the United States leading to increasing regional tensions, setting the stage for future conflicts, especially around the issue of slavery as expansion continued.