AP United States History 1800-Now
Early 1800s
Jeffersonian Era
Louisiana Purchase
War of 1812
Mid-1800s
Manifest Destiny
Westward Expansion
Mexican-American War
Late 1800s
Industrialization
Gilded Age
Labor Movements
Early 1900s
Progressive Era
Reforms
World War I
Mid-1900s
World War II
Cold War
Civil Rights Movement
Late 1900s
Post-War America
Vietnam War
Civil Rights Movement
2000s-Now
Modern America
War on Terror
Technology Advancements
Each main branch can further expand into specific events, legislation, key figures, and their impacts on American history.