American History: Key Shifts & Conflicts (1920s-1860s)

This cheat sheet explores pivotal social, economic, and political transformations in U.S. history, from the cultural shifts of the 1920s and the Great Depression's impact to the origins of the Cold War and the deep-seated conflicts leading to the Civil War and early Civil Rights movement.

Core Principles

The 1920s saw significant female liberation and changing gender norms, challenging traditional societal expectations and behaviors.
The Great Depression highlighted the need for federal intervention, leading to the New Deal's expansion of government programs and a social safety net.
Post-WWII, the U.S. and Soviet Union emerged as superpowers, initiating the Cold War, an ideological clash between capitalism and communism.
The U.S. adopted a 'containment' policy to prevent Soviet expansion, implemented through economic aid (Marshall Plan) and military support (Truman Doctrine).
The struggle over slavery's expansion into Western territories fundamentally divided the nation, ultimately leading to the breakdown of compromise and civil war.
The early Civil Rights Movement utilized legal challenges and nonviolent direct action to dismantle Jim Crow segregation, prompting federal intervention.

People

Franklin D. Roosevelt: President during the Great Depression, architect of the New Deal.
Harry S. Truman: President who authorized atomic bombings, initiated containment policy, and began desegregation of the armed forces.
Abraham Lincoln: President whose election marked the end of compromise and the onset of the American Civil War.