This ended the war with Mexico and resulted in the cession of what would become California, Nevada, Utah, Arizona and New Mexico

This amendment granted all men suffrage, regardless of race, color, or previous condition of servitude

Beginning in the firearms industry and spreading to other products, this used interchangeable parts to lower production costs and democratize manufactured goods.

The bloodiest single day in the Civil War, this battle resulted in in Lincoln issuing the Emancipation Proclamation

This doctrine states that the states reserve the right to reject a federal law that they believe to be unconstitutional

The Gadsden Purchase resulted in the acquisition of the Mesilla Valley in order to build a railroad connecting Mississippi with California via this point on the Colorado River

This amendment abolished the institution of slavery in the US

Eli Whitney's invention that ultimately led to the spread of slavery into the Old Southwest.

Lincoln's "Christmas Gift" from the general who invented the concept of total war, this campaign was focused on breaking the morale of the South

This act negated treaties with Indian tribes and nullified the Missouri Compromise in order to secure a path for the construction of a transcontinental railroad.

Lewis, Clark, Sacajawea, and York explored the Louisiana Purchase as members of this group

The Fourteenth Amendment was passed in part due to governments in the post-Civil War south enacting these laws designed to keep African Americans in an inferior positions

Roads, canals, and railroads, oh my!

Four score and seven years ago

Supported by Stephen Douglas, this allowed for slavery to be excluded in the territories by local governments, despite the Dred Scott decision.

This republican doctrine states that the ultimate authority rests in the hands of the electorate and was used to determine whether or not slavery should expand into the territories

This organization helped former slaves construct schools and advocate for their rights

Textile mills that relied on local farm girls residing in a factory town for the labor supply

A last ditch attempt to placate the south in 1860 by proposing slavery be allowed anywhere south of 36* 30'

This series of five bills resolved questions regarding slavery in the territories acquired following the Mexican-American War

Andrew Jackson supported this act, which ultimately led to the Trail of Tears

This agricultural system replaced the plantation economy throughout the south, allowing poor blacks and poor whites to engage in the agricultural economy

Finish this song: I've got an old mule and her name is Sal...

Although it did not abolish slavery, this document changed the scope of the war by proclaiming all persons held as slaves in territories under rebellion were free.

Following the passage of the Fugitive Slave Act of 1850, this network was forced to extend into Canada