Westward Expansion
Connected the east and west coasts, facilitating transportation and further settlement.
Transcontinental Railroad
Industrialists such as Andrew Carnegie, John D. Rockefeller, and J.P. Morgan who amassed great wealth and power.
Robber Barons
Journalists who exposed corruption and social injustices, such as Upton Sinclair and Ida Tarbell.
Muckrakers
Sparked the outbreak of WWI by triggering a chain of events leading to conflict.
Assassination of Archduke Franz Ferdinand
Japanese surprise attack on the US naval base in Hawaii, leading to US entry into WWII.
Pearl Harbor
Encouraged westward migration by offering settlers 160 acres of land in exchange for cultivating it.
Homestead Act
Government policy of minimal interference in economic affairs, allowing businesses to operate with little regulation.
Laissez-Faire
Roosevelt's domestic policy agenda, which aimed to balance the interests of labor, business, and consumers.
Square Deal
British passenger ship sunk by a German submarine, contributing to US entry into WWI.
Lusitania
Symbol of the American women who worked in factories and shipyards during WWII.
Rosie the Riveter
The belief that it was the United States' destiny to expand across the North American continent.
Manifest Destiny
The belief that the principles of natural selection and survival of the fittest should be applied to society, often used to justify inequality.
Social Darwinism
Campaign to reduce or eliminate the consumption of alcohol, leading to Prohibition.
Temperance Movement
German proposal to Mexico to join the war against the United States, intercepted by British intelligence.
Zimmerman Telegram
Secret US project to develop the atomic bomb during WWII.
Manhattan Project
Policy focused specifically on breaking up reservations and tribal lands by granting land allotments to individual Native Americans
Dawes Act
Tragic event that resulted in the deaths of 146 workers, leading to increased workplace safety regulations.
Triangle Shirtwaist Factory Fire
Began in the aftermath of the internal explosion of USS Maine in Havana Harbor in Cuba
Spanish-American War
Peace treaty that ended WWI and imposed heavy penalties on Germany.
Treaty of Versailles
US government order that led to the internment of Japanese Americans during WWII.
Executive Order 9066
Black settlers who officially established the Dunlap Colony in Kansas
Exodusters
Legislation aimed at preventing monopolies and promoting fair competition in the marketplace.
Sherman Antitrust Act
His work exposing sanitary conditions in the meatpacking industry led to the Pure Food and Drug Act
Upton Sinclair
International organization established to promote peace and cooperation, although the US ultimately did not join.
League of Nations
Meeting between Churchill, Roosevelt, and Stalin to discuss postwar Europe and the establishment of the United Nations.
Yalta Conference