Description: The Monroe Doctrine was a policy specifically directed to the Western Hemisphere, clarifying that the United States will no longer deal with continued colonization or monarchs.

HS: Best known U.S. policy toward the Western Hemisphere.

Description: The acts called for the admission of California as a free state, created an official boundary between Texas and the United States, and also advocated for the abolishment of slave trade in Washington.

HS: California was admitted as a free state, and slave trade became outlawed in Washington.

Description: The book tells the story of Uncle Tom who is an enslaved person that saves the life of Little girl while being transported to an auction. He got purchased by the little girls father after as an thank you.

HS: Famous Anti Slavery Novel.

Description: A period of violence between Pro-slavery groups, Free-Staters, and Abolitionists.

HS: People participated in violence, and dishonest voting practices from 1854 until the outset of the Civil War. Men from other areas such as Missouri came to Kansas to vote illegally to help dictate future slavery laws

Description: The Dred Scott case resulted in the United States Supreme Court upholding slavery in the U.s, denying the legality of black citizenship in the U.S, and declaring the Missouri Compromise to be unconstitutional.

HS: It increased tensions and pushed the country closer toward the outbreak of the American Civil War.

Description: Abraham Lincoln won the 1860 election by winning both the popular and electoral vote, and defeated Southern Democrat John C. Breckinridge.

HS: Abraham Lincoln won the election and became president.

Description: War between the United States of America and the Confederate States of America due to the long-standing disagreement over slavery.

HS: The Civil War tipped the sectional balance of power in favor of the North, and resulted in the emancipation of lots of enslaved African Americans.

Description: The speech was given by Lincoln to remind his audience that the United States was founded based on liberty and equality.

HS: Paid tribute and gave meaning to the men who lost their lives in the Battle of Gettysburg.

Description: The Reconstruction Acts were a series of laws passed by Congress to take over the reconstruction project, and reorganize southern states.

HS: A series of laws that aimed to reorganize the Southern states after the Civil War.

Description: Russia and the U.S both agreed that the United States would pay Russia $7.2 million for the territory of Alaska.

HS: The purchase of Alaska marked the end of Russian efforts to expand trade and settlements to the Pacific coast areas of North America.

Description: In 1875 inventor Alexander Graham Bell revolutionized communication by creating the first telephone.

HS: Revolutionized communication, especially long distances.

Description: A labor demonstration that took place at Haymarket Square Chicago. Unionists called a mass meeting to protest police brutality in a strike action. A bomb was thrown into the crowd killing seven policemen and injuring 60.

HS: A violent expression for the international struggle for worker's right and response to the horrid working conditions.

Description: A policy that regulated land rights on tribal territories within the US. Outlawing tribal ownership of land and forcing 160-acre homesteads into the hands of Native Americans with the promise of future citizenship. The goal was the assimilate Native people into white culture as soon as possible.

HS: The process used to evaluate what was significant about selected events, people and developments in the past.

Description: The Pullman Strike was a widespread railroad strike and boycott that disrupted rail traffic in the US Midwest. This would go on to shape national labor policy in the US during a deep state of economic depression.

HS: Demonstrated the power of national labor and forced consideration about labor action and corporate paternalism.

Description: The ruling in this Supreme Court case upheld the Louisiana State Law that allowed for "equal but separate accommodations". Ruling against an African American man who attempted to ride a "whites only" in Louisiana, stating it didn't violate the 14th amendment.

HS: Established the constitutionality of segregation.

Description: Beginning in the aftermath of the internal explosion of the USS Maine in Havana Harbour of Cuba. Which led to the US intervening in the Cuban War of Independence. Thanks to the support of the US the War ended Spain's colonial empire in the Western Hemisphere.

HS: Ended Spain's Empirical rule and established the US as a Pacific power.

Description: Prompted by nationalism after the Spanish-American War, the US annexed Hawaii at the urging of President McKinley. This extended US territory into the Pacific.

HS: Highlighted economic integration and the rise of the United States as a Pacific Power. As Well as of course extending US territory.

Description: The popular president McKinley was shot at the Pan-American exposition in Buffalo.

HS: After McKinley died his Vice President Roosevelt took over and set us a major part of American Imperialism.

Description: The Panama Canal serves as a maritime shortcut that saves time and costs in transporting all kinds of goods. The 80-kilometer waterway communicates the Atlantic and Pacific Oceans in one of the narrowest points of the American Continent.

HS: Symbolized US technological prowess and economic power.

Description: Teddy Roosevelt was the First ever US president to win the Nobel Peace prize. He received it for his peace negotiations in the Russo- Japanese War.