United States
![[[Cliff Palace](https://upload.wikimedia.org/wikipedia/commons/4/4f/Extreme_Makeover%2C_Mesa_Verde_Edition_-_panoramio.jpg)
Coastal/territorial waters included:
Only internal waters included: |name=largestcountry}} second-largest exclusive economic zone, and third-largest population, exceeding 334 million.
Paleo-Indians migrated across the Bering land bridge more than 12,000 years ago, and went on to form various civilizations and societies. British colonization led to the first settlement of the Thirteen Colonies in Virginia in 1607. Clashes with the British Crown over taxation and political representation sparked the American Revolution, with the Second Continental Congress formally declaring independence on July 4, 1776. Following its victory in the Revolutionary War (1775–1783), the country continued to expand across North America. As more states were admitted, sectional division over slavery led to the secession of the Confederate States of America, which fought the remaining states of the Union during the 1861–1865 American Civil War. With the Union's victory and preservation, slavery was abolished nationally. By 1890, the United States had established itself as a great power. After Japan's attack on Pearl Harbor in December 1941, the U.S. entered World War II. The aftermath of the war left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War, during which both countries engaged in a struggle for ideological dominance and international influence. Following the Soviet Union's collapse and the end of the Cold War in 1991, the U.S. emerged as the world's sole superpower.
The U.S. national government is a presidential constitutional republic and liberal democracy with three separate branches: legislative, executive, and judicial. It has a bicameral national legislature composed of the House of Representatives, a lower house based on population; and the Senate, an upper house based on equal representation for each state. Substantial autonomy is given to states and several territories, with a political culture that emphasizes liberty, equality under the law, individualism, and limited government.
One of the world's most developed countries, the United States has had the largest nominal GDP since about 1890 and accounted for 15% of the global economy in 2023. It possesses by far the largest amount of wealth of any country and has the highest disposable household income per capita among OECD countries. The U.S. ranks among the world's highest in human rights, economic competitiveness, productivity, innovation, and higher education. Its hard power and cultural influence have a global reach. The U.S. is a founding member of the World Bank, Organization of American States, NATO, and United Nations, as well as a permanent member of the UN Security Council. Provided by Wikipedia
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Western part of the United States showing location of federal irrigation projectscartographic materialPublished 1941
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Letter from the Secretary of the Interior transmitting a report on the Oroville-Tonasket Unit Okanogan-Similkameen Division Chief Joseph Dam Project Washingtonpursuant to section 9 (a) of the Reclamation project act of 1939 (53 Stat 1187)BookPublished 1960
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Plan of Col Steptoe's Battlefield on the Ingossomen Creek May 15th 16th & 17th 1858cartographic materialPublished 1859
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Published 1826
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Northern Pacific railroad;Speech of Hon William Windom of Minnesota delivered in the House of representatives January 5 1869Bookby Windom, William, 1827-1891
Published 1869 -
Map of passes in the Sierra Nevada from Walker's Pass to the Coast Rangefrom explorations and surveyscartographic materialby Williamson, R. S. (Robert Stockton), 1824-1882
Published 1853 -
Admission of OregonSpeech of Hon Alexander H Stephens of Georgia in the House of representatives February 12 1859Bookby Stephens, Alexander H. (Alexander Hamilton), 1812-1883
Published 1859 -
Abstract of infantry tacticsincluding exercises and manœvres of light-infantry and riflemen; for the use of the militia of the United States Pub by the Department of WarBookPublished 1861
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Map and profile of the Cañada de la Uvasfrom explorations and surveys made under the direction of the Hon Jefferson Daviscartographic materialPublished 1853
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Colville National Forest land management planFerry Pend Oreille and Stevens Counties WashingtonBookPublished 2018
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Before the United States Geographic Board in the matter of the proposal to change the name of Mount RainierStatement of Charles Tallmadge Conover representing numerous citizens of the State of Washington in favor of retaining the present name and oral presentation by C T Conover and Victor J Farrar The decisionBookPublished 1917
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OregonReport of Lieut Neil M Howison United States Navy to the commander of the Pacific Squadron; being the result of an examination in the year 1846 of the coast harbors rivers soil productions climate and population of the territory of Oregon February 29 1848 Ordered to be printedBookPublished 1848