United States, 1865–1898

Democracy · Republic · North America · Imperial Zenith era

Gilded-Age America: rapid industrialization, mass immigration and westward expansion under a democracy marked by machine politics and vast new fortunes.

In the decades after the Civil War the United States industrialized at extraordinary speed, absorbed mass immigration, settled the West and became the world’s largest economy. Democratic institutions coexisted with party machines, patronage, corporate power and, in the South, the rollback of Reconstruction and the imposition of racial segregation. The period ended with overseas expansion in the war of 1898.

Open United States 1865–1898 in the interactive 3D atlas →

Dominant patterns

  • Democratization

Political-science factor profile

Each factor 0–100; higher = stronger authoritarian / crisis pole (except institutional stability, where higher = stronger institutions).

Centralization of Power40
Media Control25
Repression32
Nationalism55
Militarization42
Economic Stress45
External Conflict42
Cult of Personality28
Elite Fragmentation55
Institutions72
Social Polarization58
Corruption & Patrimonialism62
Ideological Mobilization40
External Sovereignty100

Economy & society

GDP per capita$3900 (intl-$)
GDP growth+4%/yr
Population63.0M people
Share of world population4.1%
Urban share35%
Territory~7.8M km²
Capital population~230k

Closest historical twins

The country-eras whose structural profile most resembles United States 1865–1898, by similarity score (0–100).

  1. India, 1998–2009 – similarity 94/100 · shared: Democratization
  2. United States, 1789–1815 – similarity 91/100 · shared: Democratization
  3. United Kingdom, 1815–1837 – similarity 89/100 · shared: Democratization
  4. United States, 1898–1917 – similarity 84/100 · shared: Democratization
  5. India, 1947–1966 – similarity 84/100 · shared: Democratization
  6. Florence, 1434–1494 CE – similarity 82/100 · shared: Democratization
  7. South Africa, 1994–2008 – similarity 80/100 · shared: Democratization
  8. United Kingdom, 2010–2016 – similarity 78/100 · shared: Democratization

What followed

  • Industrial ascent to the world’s largest economy.
  • Continental settlement and overseas expansion by 1898.