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U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars.
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The bessemer process was the first inexpensive industrial process for the mass production of steel.
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The discovery of gold in pikes peak was the first significant gold discovery in the rocky mountain region.
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The homestead acts were several laws in the United States by which an applicant could acquire ownership of government land or the public domain.
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The morrill land grant acts are United States statutes that allowed for the creation of land-grant colleges in U.S. states
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The transcontinental railroad was contiguous railroad trackage, that crosses a continental land mass and has terminals at different oceans or continental borders.
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The Statue of Liberty is a colossal neoclassical sculpture on Liberty Island in New York Harbor in New York City, in the United States
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The Battle of little bighorn was an armed engagement between combined forces of the Lakota Sioux, Northern Cheyenne, and Arapaho tribes and the 7th Cavalry Regiment of the United States Army.
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Farmers alliance was an organized agrarian economic movement among American farmers.
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Thomas Edison had built his first high resistance, incandescent electric light.
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Carlisle school was the flagship Indian boarding school in the United States.
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The Chinese Exclusion Act was a United States federal law signed by President Chester A. Arthur, prohibiting all immigration of Chinese laborers for 10 years.
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Thomas Edison's company flipped the switch on his Pearl Street power station, providing hundreds of homes with electricity.
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The american federation of labor was a national federation of labor unions in the United States that continues today as the AFL–CIO.
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The dawes act regulated land rights on tribal territories within the United States.
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The interstate commerce act is a United States federal law that was designed to regulate the railroad industry, particularly its monopolistic practices.
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His book, How the Other Half Lives, stimulated the first significant New York legislation to curb poor conditions in tenement housing.
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This was a revolutionary analysis of the importance of naval power as a factor in the rise of the British Empire.
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The sherman anti-trust act is a United States antitrust law which prescribes the rule of free competition among those engaged in commerce.
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The Wounded knee massacre was, the slaughter of approximately 150–300 Lakota Indians by United States Army troops in the area of Wounded Knee Creek in southwestern South Dakota.
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The Pullman strike was two interrelated strikes that shaped national labor policy in the United States during a period of deep economic depression.
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Plessy v Ferguson was a landmark U.S. Supreme Court decision ruling that racial segregation laws did not violate the U.S. Constitution as long as the facilities for each race were equal in quality.
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Holden v hardy is a US labor law case in which the US Supreme Court held a limitation on working time for miners and smelters as constitutional.
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America's annexation of Hawaii extended U.S. territory into the Pacific and highlighted resulted from economic integration and the rise of the United States as a Pacific power.
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The Spanish American War began in the aftermath of the internal explosion of USS Maine in Havana Harbor in Cuba.
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In Paris, the United States paid Spain $20 million to annex the entire Philippine archipelago.
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The Newlands Reclamation act is a United States federal law that funded irrigation projects for the arid lands of 20 states in the American West.
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This was written to expose the appalling working conditions in the meat-packing industry.
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Lochner v New York was a landmark decision of the U.S. Supreme Court holding that a New York State statute that prescribed maximum working hours for bakers violated the bakers' right to freedom of contract under the Fourteenth Amendment to the U.S. Constitution.
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Pure Food and drug act prohibited the sale of misbranded or adulterated food and drugs in interstate commerce and laid a foundation for the nation's first consumer protection agency.
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Muller V Oregon was was a landmark decision by the United States Supreme Court, women were provided by state mandate lesser work-hours than allotted to men.
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The National Association for the Advancement of Colored People was formed in New York City by white and Black activists, partially in response to the ongoing violence against Black Americans around the country.
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The Hepner act was decided on April 5th, 1909.
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The 17th adm allowed voters to cast direct votes for U.S. senators.
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Henry Ford installed the first moving assembly line for the mass production of an entire automobile.
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The Federal Reserve act created the Federal Reserve System, the central banking system of the United States.
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The Clayton Antitrust act is a part of United States antitrust law with the goal of adding further substance to the U.S. antitrust law regime.
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WWI started after the assassination of Archduke Franz Ferdinand of Austria.
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This started after the assassination of Archduke Franz Ferdinand of Austria.
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The Panama Canal is an artificial 82 km waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America.
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The Lusitania Sunk was a British-registered ocean liner that was torpedoed by an Imperial German Navy U-boat during the First World War.
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The Selective Service act authorized the United States federal government to raise a national army for service in World War I through conscription.
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After more than four years of horrific fighting and the loss of millions of lives, the guns on the Western Front fell silent.
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The 18th adm prohibited the manufacture, sale, or transportation of intoxicating liquors.
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The 19 adm granted women the right to vote.
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The most influential essay by an American historian, Frederick Jackson Turner's address to the American Historical Association on “The Significance of the Frontier in American History” defined for many Americans the relationship between the frontier and American culture.
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The Immigration quota act was formulated mainly in response to the large influx of Southern and Eastern Europeans and restricted their immigration to the United States.
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The National origins act was a federal law that prevented immigration from Asia and set quotas on the number of immigrants from Eastern and Southern Europe.
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The Scopes trial was an American legal case in which a high school teacher, John T. Scopes, was accused of violating Tennessee's Butler Act.