1. The desire for access to natural and mineral resources and the hope of many settlers for economic opportunities or religious refuge led to an increased migration to and settlement in the West.
2. Advocates of annexing western lands argued that Manifest Destiny and the superiority of American institutions compelled the United States to expand its borders westward to the Pacific ocean.
3. The U.S. added large territories in the West through victory in the Mexican–American War and diplomatic negotiations, raising questions about the status of slavery, American Indians, and Mexicans in the newly acquired lands.
4. Westward migration was boosted during and after the Civil War by the passage of new legislation promoting Western transportation and economic development.
5. U.S. interest in expanding trade led to economic, diplomatic, and cultural initiatives to create more ties with Asia.

1. Substantial numbers of international migrants continued to arrive in the United States from Europe and Asia, mainly from Ireland and Germany, often settling in ethnic communities where they could preserve elements of their languages and customs.
2. A strongly anti-Catholic nativist movement arose that was aimed at limiting new immigrants’ political power and cultural influence.    
3. U.S. government interaction and conflict with Mexican Americans and American Indians increased in regions newly taken from American Indians and Mexico, altering these groups’ economic self-sufficiency and cultures. 

1. The North’s expanding manufacturing economy relied on free labor in contrast to the Southern economy’s dependence on slave labor. Some Northerners did not object to slavery on principle but claimed that slavery would undermine the free labor market. As a result, a free soil movement arose that portrayed the expansion of slavery as incompatible with free labor.
2. African American and white abolitionists, although a minority in the North, mounted a highly visible campaign against slavery, presenting moral arguments against the institution, assisting slaves’ escapes, and sometimes expressing a willingness to use violence to achieve their goals.
3. Defenders of slavery based their arguments on racial doctrines, the view that slavery was a positive social good, and the belief that slavery and states’ rights were protected by the Constitution.

1. The Mexican Cession led to heated controversies over whether to allow slavery in the newly acquired territories.
2. The courts and national leaders made a variety of attempts to resolve the issue of slavery in the territories, including the Compromise of 1850, the Kansas–Nebraska Act, and the Dred Scott decision, but these ultimately failed to reduce conflict.
3. The Second Party System ended when the issues of slavery and anti-immigrant nativism weakened loyalties to the two major parties and fostered the emergence of sectional parties, most notably the Republican Party in the North.
4. Abraham Lincoln’s victory on the Republicans’ free-soil platform in the presidential election of 1860 was accomplished without any Southern electoral votes. After a series of contested debates about secession, most slave states voted to secede from the Union, precipitating the Civil War.

1. Both the Union and the Confederacy mobilized their economies and societies to wage the war even while facing considerable home front opposition.
2. Lincoln and most Union supporters began the Civil War to preserve the Union, but Lincoln’s decision to issue the Emancipation Proclamation reframed the purpose of the war and helped prevent the Confederacy from gaining full diplomatic support from European powers. Many African Americans fled southern plantations and enlisted in the Union Army, helping to undermine the Confederacy.
3. Lincoln sought to reunify the country and used speeches such as the Gettysburg Address to portray the struggle against slavery as the fulfillment of America’s founding democratic ideals.
4. Although the Confederacy showed military initiative and daring early in the war, the Union ultimately succeeded due to improvements in leadership and strategy, key victories, greater resources, and the wartime destruction of the South’s infrastructure. 

1. The 13th Amendment abolished slavery, while the 14th and 15th amendments granted African Americans citizenship, equal protection under the laws, and voting rights.
2. The women’s rights movement was both emboldened and divided over the 14th and 15th amendments to the Constitution.
3. Efforts by radical and moderate Republicans to change the balance of power between Congress and the presidency and to reorder race relations in the defeated South yielded some short-term successes. Reconstruction opened up political opportunities and other leadership roles to former slaves, but it ultimately failed, due both to determined Southern resistance and the North’s waning resolve.
4. Southern plantation owners continued to own the majority of the region’s land even after Reconstruction. Former slaves sought land ownership but generally fell short of self-sufficiency, as an exploitative and soil-intensive sharecropping system limited blacks’ and poor whites’ access to land in the South.
5. Segregation, violence, Supreme Court decisions, and local political tactics progressively stripped away African American rights, but the 14th and 15th amendments eventually became the basis for court decisions upholding civil rights in the 20th century. 

PBS - Interactive Mexican-American War timeline 

Renewing the Sectional Struggle PPT - (Hallowin)

John C. Calhoun - "Speech on the Slavery Question"

John C. Calhoun Biography - Includes info on Mexican-American War 

Drifting Towards Disunion PPT - (Hallowin)

America: The Story of Us - Division 

Political Impact of the Civil War PPT - (Hallowin)

America: The Story of Us - Civil War 

Military Impact of the Civil War PPT - (Hallowin)

Reconstruction PPT - (Hallowin)

Reconstruction - The Second Civil War

The Great West & Agricultural Revolution PPT - The Great West 

America: The Story of Us - Heartland

Period Review:

Period 5 Chapter Reading Guides - Henretta

Period 5 Review - APUSH Review

Gilder Lehrman - Period 5 Review