Period THE BIG IDEA: As the nation expanded and its population grew, regional tensions, especially over slavery, led to a civil war—the course and aftermath of which transformed American society. Key Concept 5.1: The United States became more connected with the world as it pursued an expansionist foreign policy in the Western Hemisphere and emerged as the destination for many migrants from other countries. Key Concept 5.2: Intensified by expansion and deepening regional divisions, debates over slavery and other economic, cultural, and political issues led the nation into civil war. Key Concept 5.3: The Union victory in the Civil War and the contested Reconstruction of the South settled the issues of slavery and secession, but left unresolved many questions about the power of the federal government and citizenship rights.

THE BIG IDEA: As the nation expanded and its population grew, regional tensions, especially over slavery, led to a civil war —the course and aftermath of which transformed American society – Election of Polk, Manifest Destiny 1877 – End of Reconstruction Expansion – TX and Mex Cession Cause unrest in 1850s Events of 1850s all increase tension over slavery Civil War as transformative event in US History

Key Concept 5.1: The United States became more connected with the world as it pursued an expansionist foreign policy in the Western Hemisphere and emerged as the destination for many migrants from other countries. Expansionist For Policy –TX –Mex War –Alaska Irish Ger Immigration and Corresponding rise in Nativism

Key Concept 5.2: Intensified by expansion and deepening regional divisions, debates over slavery and other economic, cultural, and political issues led the nation into civil war. Comp of 1850 Fug Slave Laws Pop Sovereignty Uncle Tom’s Cabin KS NE Act Bleeding KS Bleeding Sumner Dred Scot Lincoln Douglas / House Divided John Brown’s Raid Lincoln / Republican Ideology Election / Secession

Key Concept 5.3: The Union victory in the Civil War and the contested Reconstruction of the South settled the issues of slavery and secession, but left unresolved many questions about the power of the federal government and citizenship rights. Emancipation as Wartime action Competing Reconstruction Plans Reasons for end of Reconstruction Changes in Gov due to Civil War

Connections Southern Lost Cause / Revolutionary Parallels Secession – Modern issues ie Chechnya Major tech changes impact Civ War, WWs, Vietnam 1850s Tension – Cold War Limits of Emancipation Proclamation Reconstruction contrasted with Jim Crow Era / Later Civil Rights Work Mex War v. other examples of expansionism / imperialism