era in United States history

C139 concept

An era in United States history is a distinct time period characterized by particular political, social, economic, and cultural conditions or transformative events that differentiate it from other periods.

Observed surface forms (10)

  • United States presidential administration ×8
  • political era ×4
  • aspect of United States history ×2
  • era in American cinema ×2
  • era of the Supreme Court of the United States ×2
  • period of United States history ×2
  • African American history event ×1
  • African-American history event ×1
  • American party system era ×1
  • United States history period ×1

Instances (25)