American Imperialism Roots

Aug 15, 2025

Overview

This lecture covers the roots of American imperialism from 1890 to 1914, focusing on key figures, motives, and events that expanded U.S. influence overseas.

The Gilded Age and Expansion

  • The Gilded Age (circa 1870–1914) marked the transformation of the U.S. into a military and economic world power.
  • American foreign policy during this period often extended the logic of domestic expansion (Manifest Destiny) to overseas territories.
  • Hawaii, Cuba, and other territories became new "frontiers" for U.S. expansion beyond the continental states.

Early Architects of Empire

  • William Seward, Secretary of State in the 1860s, sought U.S. expansion into Asia and Latin America.
  • Seward acquired the Midway Islands and purchased Alaska from Russia, initially criticized as "Seward's Folly" but later valued for its resources.
  • Hamilton Fish worked to gain U.S. respect internationally, negotiating the Alabama Claims with Britain for Civil War reparations.

Motives for Overseas Expansion

  • Explosive economic growth during the Gilded Age pushed the search for international markets and raw materials.
  • U.S. exports grew from $234 million in 1865 to $1.3 billion by 1898, increasing need for political, cultural, and military presence abroad.
  • Other motives included religious (missionary work), cultural, and ideologies like Social Darwinism and paternalism, which justified imperialism as a civilizing mission.

Ideological Justifications

  • Social Darwinism and racial superiority theories were used to rationalize conquest and control over "less fit" societies.
  • The concept of the "White Man's Burden," popularized by Rudyard Kipling, depicted imperialism as a duty to uplift non-Western peoples.
  • Paternalism—claiming to act in the best interests of conquered peoples—was a key justification, similar to arguments used by slaveholders.

Key Thinkers: Turner and Mahan

  • Frederick Jackson Turner's "Frontier Thesis" argued that American identity was shaped by westward expansion; with the western frontier closed, expansion should go overseas.
  • Alfred T. Mahan's "The Influence of Sea Power Upon History" asserted that world power requires a strong, global navy, coaling stations, and naval bases.
  • The U.S. modernized its navy with the Naval Act of 1890, ranking third globally by 1910, behind only Britain and Germany.

Strategic Acquisitions: Hawaii and Samoa

  • Hawaii's strategic and economic value made it a U.S. target; American business interests led to the overthrow of Queen LiliĘ»uokalani and annexation in 1898.
  • Similar motives applied in Samoa, where the U.S., Germany, and Britain agreed to divide control, disregarding local opposition.

Key Terms & Definitions

  • Manifest Destiny — Belief that the U.S. was destined to expand across North America.
  • Gilded Age — Period of rapid economic and industrial growth in the U.S. from about 1870 to 1914.
  • Social Darwinism — Application of "survival of the fittest" to justify imperialism and racial hierarchies.
  • Paternalism — Policy of governing others in their supposed best interest, used to justify conquest.
  • White Man's Burden — Idea that Westerners had a duty to civilize non-Western societies.
  • Annexation — Incorporation of new territory into a country.

Action Items / Next Steps

  • Review Turner's "Frontier Thesis" and Mahan's "Influence of Sea Power Upon History."
  • Prepare notes on the motives and justifications for U.S. expansion for class discussion.