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151-609: The POTA movement began in the United States . It was originally founded on September 15, 2010 to encourage ham radio operators to operate their equipment from national, state and provincial parks. It generated enough interest to cause the ARRL to host a one-year program called NPOTA in 2016 to celebrate the 100th anniversary of the National Park System . A nonprofit organization was founded in 2018 to continue POTA on

302-580: A " Special Relationship " with the United Kingdom and strong ties with Canada , Australia , New Zealand , the Philippines , Japan , South Korea , Israel , and several European Union countries ( France , Italy , Germany , Spain , and Poland ). The U.S. works closely with its NATO allies on military and national security issues, and with countries in the Americas through

453-405: A central state apparatus designed to manage state institutions more efficiently. These changes helped Texas universities receive federal research funds. Beginning around the mid-20th century, Texas began to transform from a rural and agricultural state to one urban and industrialized. The state's population grew quickly during this period, with large levels of migration from outside the state. As

604-542: A coordinated, continent-wide military effort. Finally, deteriorating relations between the British military establishment and the colonists, relations that were already less than positive, set the stage for further distrust and dislike of British troops. Following their victory in the French and Indian War, Britain began to assert greater control over local colonial affairs, resulting in colonial political resistance ; one of

755-534: A decentralized government that operated until 1789. After the British surrender at the siege of Yorktown in 1781 American sovereignty was internationally recognized by the Treaty of Paris (1783), through which the U.S. gained territory stretching west to the Mississippi River, north to present-day Canada, and south to Spanish Florida . The Northwest Ordinance (1787) established the precedent by which

906-407: A few prominent industrialists , largely by their formation of trusts and monopolies to prevent competition. Tycoons led the nation's expansion in the railroad , petroleum , and steel industries. The United States emerged as a pioneer of the automotive industry . These changes were accompanied by significant increases in economic inequality , slum conditions , and social unrest , creating

1057-568: A frontier territory. The state became notorious as a haven for people from other parts of the country who wanted to escape debt, war tensions, or other problems. "Gone to Texas" was a common expression for those fleeing the law in other states. Nevertheless, the state also attracted many businessmen and other settlers with more legitimate interests. The cattle industry continued to thrive, though it gradually became less profitable. Cotton and lumber became major industries creating new economic booms in various regions. Railroad networks grew rapidly as did

1208-666: A global reach. The U.S. is a founding member of the World Bank , Organization of American States , NATO , and the United Nations , as well as a permanent member of the UN Security Council . The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan , a Continental Army aide to General George Washington , wrote to Joseph Reed , Washington's aide-de-camp , seeking to go "with full and ample powers from

1359-523: A major destination for migration during the early 21st century and was named the most popular state to move for three consecutive years. Another study in 2019 determined Texas's growth rate at 1,000 people per day. During the COVID-19 pandemic in Texas , the first confirmed case of the virus in Texas was announced on March 4, 2020. On April 27, 2020, Governor Greg Abbott announced phase one of re-opening

1510-481: A minimum of 10 contacts (QSOs) from a park in the designated list within a single UTC day (Zulu day). United States The United States of America ( USA ), commonly known as the United States ( U.S. ) or America , is a country primarily located in North America . It is a federal union of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to

1661-486: A pack of playing cards, although some activators prefer to use higher power, more sophisticated and larger equipment. Activators can signal their intent to be on the air in advance using the POTA website, so that hunters are ready for them. Activators log all the contacts they make and upload them to the POTA website, which then allocates the rewards and shows league tables for everyone involved. A successful activation requires

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1812-542: A part of the Sun Belt , Texas experienced strong economic growth, particularly during the 1970s and early 1980s. Texas's economy diversified, lessening its reliance on the petroleum industry . By 1990, Hispanics and Latino Americans overtook Blacks to become the largest minority group. Texas has the largest Black population with over 3.9 million. During the late 20th century, the Republican Party replaced

1963-598: A period of heightened, overt racism following Reconstruction, a time often called the nadir of American race relations . A series of Supreme Court decisions, including Plessy v. Ferguson , emptied the Fourteenth and Fifteenth Amendments of their force, allowing Jim Crow laws in the South to remain unchecked, sundown towns in the Midwest, and segregation in communities across the country , which would be reinforced by

2114-600: A permanent basis, since when it has been a popular method of community and student outreach, with events taking place both in parks and sometimes at other public events. The organization worked to expand worldwide and participation now occurs around the clock and around the world, in locations as diverse as the Caribbean, India, China and Europe. Park locations range from large national parks covering many square miles to small urban locations and islands. In early 2024, POTA updated its reference codes and other data systems to match

2265-488: A prominent leader in the early 1960s. The Great Society plan of President Lyndon Johnson 's administration resulted in groundbreaking and broad-reaching laws, policies and a constitutional amendment to counteract some of the worst effects of lingering institutional racism . The counterculture movement in the U.S. brought significant social changes, including the liberalization of attitudes toward recreational drug use and sexuality . It also encouraged open defiance of

2416-526: A sense of manifest destiny . The Missouri Compromise attempted to balance the desire of northern states to prevent the expansion of slavery into new territories with that of southern states to extend it, admitting Missouri as a slave state and Maine as a free state. It further prohibited slavery in all other lands of the Louisiana Purchase north of the 36°30′ parallel . As Americans expanded further into land inhabited by Native Americans,

2567-614: A sense of American identity as well. Men who otherwise never left their own colony now traveled across the continent to fight alongside men from decidedly different backgrounds but who were no less "American". British officers trained American officers for battle, most notably George Washington ; these officers would lend their skills and expertise to the colonists' cause during the American Revolutionary War to come. In addition, colonial legislatures and officials found it necessary to cooperate intensively in pursuit of

2718-634: A supply state was marginalized in mid-1863 after the Union capture of the Mississippi River . The final battle of the Civil War was fought at Palmito Ranch , near Brownsville, Texas, and saw a Confederate victory. Texas descended into anarchy for two months between the surrender of the Army of Northern Virginia and the assumption of authority by Union General Gordon Granger . Violence marked

2869-435: A third of Colorado , and small portions of Kansas , Oklahoma , and Wyoming to the federal government, in return for the assumption of $ 10 million of the old republic's debt. Post-war Texas grew rapidly as migrants poured into the cotton lands of the state. They also brought or purchased enslaved African Americans, whose numbers tripled in the state from 1850 to 1860, from 58,000 to 182,566. Texas re-entered war following

3020-464: A year). Juvenile correctional facilities are operated by local or state governments and serve as longer-term placements for any minor adjudicated as delinquent and ordered by a judge to be confined. As of January 2023, the United States has the sixth-highest per capita incarceration rate in the world—531 people per 100,000 inhabitants—and the largest prison and jail population in

3171-591: Is believed to be the first widespread culture in the Americas. Over time, indigenous North American cultures grew increasingly sophisticated, and some, such as the Mississippian culture , developed agriculture , architecture , and complex societies . In the post-archaic period , the Mississippian cultures were located in the midwestern , eastern , and southern regions, and the Algonquian in

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3322-498: Is known as the presidential system , in contrast to the parliamentary system , where the executive is part of the legislative body. Many countries around the world imitated this aspect of the 1789 Constitution of the United States , especially in the Americas. The Constitution is silent on political parties. However, they developed independently in the 18th century with the Federalist and Anti-Federalist parties. Since then,

3473-438: Is now the United States experienced conflicts with Native Americans, they also engaged in trade, exchanging European tools for food and animal pelts. Relations ranged from close cooperation to warfare and massacres. The colonial authorities often pursued policies that forced Native Americans to adopt European lifestyles, including conversion to Christianity. Along the eastern seaboard, settlers trafficked African slaves through

3624-405: Is the second-largest U.S. state by area, after Alaska , and the largest state within the contiguous United States , at 268,820 square miles (696,200 km ). If it were an independent country, Texas would be the 39th-largest . It ranks 26th worldwide amongst country subdivisions by size . Texas is in the south central part of the United States. The Rio Grande forms a natural border with

3775-552: Is the federal agency charged with addressing most environmental-related issues . The idea of wilderness has shaped the management of public lands since 1964, with the Wilderness Act . The Endangered Species Act of 1973 provides a way to protect threatened and endangered species and their habitats. The United States Fish and Wildlife Service implements and enforces the Act. In 2024, the U.S. ranked 34th among 180 countries in

3926-674: Is the most populous state in the South Central region of the United States . It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and an international border with the Mexican states of Chihuahua , Coahuila , Nuevo León , and Tamaulipas to the south and southwest. Texas has a coastline on the Gulf of Mexico to the southeast. Covering 268,596 square miles (695,660 km ), and with over 30 million residents as of 2023, it

4077-527: Is the second-largest state by both area and population . Texas is nicknamed the Lone Star State for its former status as an independent republic . Spain was the first European country to claim and control Texas. Following a short-lived colony controlled by France, Mexico controlled the land until 1836 when Texas won its independence, becoming the Republic of Texas . In 1845, Texas joined

4228-519: Is unetymological, contrary to the historical value of the letter x ( / ʃ / ) in Spanish orthography . Alternative etymologies of the name advanced in the late 19th century connected the name Texas with the Spanish word teja , meaning 'roof tile', the plural tejas being used to designate Indigenous Pueblo settlements. A 1760s map by Jacques-Nicolas Bellin shows a village named Teijas on

4379-603: The Allies of World War I , helping to turn the tide against the Central Powers . In 1920, a constitutional amendment granted nationwide women's suffrage . During the 1920s and '30s, radio for mass communication and the invention of early television transformed communications nationwide. The Wall Street Crash of 1929 triggered the Great Depression , which President Franklin D. Roosevelt responded to with

4530-642: The Aranama , lived in southern Texas. This entire culture group, primarily centered in northeastern Mexico , is now extinct. No culture was dominant across all of present-day Texas, and many peoples inhabited the area. Native American tribes who have lived inside the boundaries of present-day Texas include the Alabama , Apache , Atakapan , Bidai , Caddo , Aranama , Comanche , Choctaw , Coushatta , Hasinai , Jumano , Karankawa , Kickapoo , Kiowa , Tonkawa , and Wichita . Many of these peoples migrated from

4681-553: The Atlantic slave trade . The original Thirteen Colonies that would later found the United States were administered as possessions of Great Britain , and had local governments with elections open to most white male property owners . The colonial population grew rapidly, eclipsing Native American populations; by the 1770s, the natural increase of the population was such that only a small minority of Americans had been born overseas. The colonies' distance from Britain allowed for

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4832-595: The Battle of Gonzales . This launched the Texas Revolution . Texians elected delegates to the Consultation , which created a provisional government. The provisional government soon collapsed from infighting, and Texas was without clear governance for the first two months of 1836. Mexican President Antonio López de Santa Anna personally led an army to end the revolt. General José de Urrea defeated all

4983-817: The Bering land bridge more than 12,000 years ago, and formed 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

5134-661: The Democratic Party as the dominant party in the state. Beginning in the early 21st century, metropolitan areas including Dallas–Fort Worth and Greater Austin became centers for the Texas Democratic Party in statewide and national elections as liberal policies became more accepted in urban areas. From the mid-2000s to 2019, Texas gained an influx of business relocations and regional headquarters from companies in California . Texas became

5285-549: The Environmental Performance Index . The country joined the Paris Agreement on climate change in 2016 and has many other environmental commitments. The United States is a federal republic of 50 states and a separate federal capital district, Washington, D.C. It also asserts sovereignty over five unincorporated territories and several uninhabited island possessions . The U.S. is

5436-500: The Federal Bureau of Investigation (FBI) and the U.S. Marshals Service have national jurisdiction and specialized duties, such as protecting civil rights , national security and enforcing U.S. federal courts ' rulings and federal laws. State courts conduct most civil and criminal trials, and federal courts handle designated crimes and appeals of state court decisions . There is no unified "criminal justice system" in

5587-720: The Great Lakes , Mississippi River and Gulf of Mexico . British colonization of the East Coast began with the Virginia Colony (1607) and Plymouth Colony (1620). The Mayflower Compact and the Fundamental Orders of Connecticut established precedents for representative self-governance and constitutionalism that would develop throughout the American colonies. While European settlers in what

5738-719: The Great Lakes region and along the Eastern Seaboard , while the Hohokam culture and Ancestral Puebloans inhabited the southwest . Native population estimates of what is now the United States before the arrival of European immigrants range from around 500,000 to nearly 10 million. Christopher Columbus began exploring the Caribbean for Spain in 1492, leading to Spanish-speaking settlements and missions from Puerto Rico and Florida to New Mexico and California . France established its own settlements along

5889-517: The Gulf of Mexico . The resulting " oil boom " transformed Texas. Oil production averaged three million barrels per day at its peak in 1972. In 1901, the Democratic-dominated state legislature passed a bill requiring payment of a poll tax for voting, which effectively disenfranchised most Black and many poor White and Latino people. In addition, the legislature established white primaries , ensuring minorities were excluded from

6040-524: The House of Representatives , a lower house based on population; and the Senate , an upper house based on equal representation for each state. Federalism provides substantial autonomy to the 50 states, while the country's political culture promotes liberty , equality , individualism , personal autonomy , and limited government . One of the world's most developed countries , the United States has had

6191-596: The Midwest . At the same time, about one million French Canadians migrated from Quebec to New England . During the Great Migration , millions of African Americans left the rural South for urban areas in the North. Alaska was purchased from Russia in 1867. The Compromise of 1877 effectively ended Reconstruction and white supremacists took local control of Southern politics . African Americans endured

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6342-670: The Mississippian culture , also known as Mound Builders , which extended along the Mississippi River Valley east of Texas; and the civilizations of Mesoamerica , which were centered south of Texas. Influence of Teotihuacan in northern Mexico peaked around AD 500 and declined between the 8th and 10th centuries. When Europeans arrived in the Texas region, the language families present in the state were Caddoan, Atakapan , Athabaskan, Coahuiltecan , and Uto-Aztecan, in addition to several language isolates such as Tonkawa . Uto-Aztecan Puebloan and Jumano peoples lived neared

6493-688: The National Park Service and other agencies. About 28% of the country's land is publicly owned and federally managed, primarily in the Western States . Most of this land is protected , though some is leased for commercial use, and less than one percent is used for military purposes. Environmental issues in the United States include debates on non-renewable resources and nuclear energy , air and water pollution , biodiversity , logging and deforestation , and climate change . The U.S. Environmental Protection Agency (EPA)

6644-652: The New Deal , a series of sweeping programs and public works projects combined with financial reforms and regulations . All were intended to protect against future economic depressions. Initially neutral during World War II , the U.S. began supplying war materiel to the Allies of World War II in March 1941 and entered the war in December after the Empire of Japan 's attack on Pearl Harbor . The U.S. developed

6795-625: The Old Three Hundred , made places along the Brazos River in 1822. The population of Texas grew rapidly. In 1825, Texas had about 3,500 people, with most of Mexican descent. By 1834, the population had grown to about 37,800 people, with only 7,800 of Mexican descent. Many immigrants openly flouted Mexican law, especially the prohibition against slavery . Combined with United States' attempts to purchase Texas, Mexican authorities decided in 1830 to prohibit continued immigration from

6946-778: The Organization of American States and the United States–Mexico–Canada Free Trade Agreement . In South America, Colombia is traditionally considered to be the closest ally of the United States. The U.S. exercises full international defense authority and responsibility for Micronesia , the Marshall Islands , and Palau through the Compact of Free Association . It has increasingly conducted strategic cooperation with India , but its ties with China have steadily deteriorated. Since 2014,

7097-568: The Pacific Ocean . Their opponents, led by Sam Houston, advocated the annexation of Texas to the United States and peaceful co-existence with Native Americans. The conflict between the factions was typified by an incident known as the Texas Archive War . With wide popular support, Texas first applied for annexation to the United States in 1836, but its status as a slaveholding country caused its admission to be controversial and it

7248-648: The Pentium microprocessor in accordance with Moore's law , rechargeable lithium-ion batteries , the first gene therapy trial, and cloning either emerged in the U.S. or were improved upon there. The Human Genome Project was formally launched in 1990, while Nasdaq became the first stock market in the United States to trade online in 1998. In the Gulf War of 1991, an American-led international coalition of states expelled an Iraqi invasion force that had occupied neighboring Kuwait . The September 11 attacks on

7399-546: The Saint Malo settlement assisting Jean Lafitte in the Battle of New Orleans . In 1821, the Mexican War of Independence included the Texas territory, which became part of Mexico. Due to its low population, the territory was assigned to other states and territories of Mexico ; the core territory was part of the state of Coahuila y Tejas , but other parts of today's Texas were part of Tamaulipas , Chihuahua , or

7550-534: The Soviet Union's collapse and the end of the Cold War in 1991, the U.S. emerged as the world's sole superpower , wielding significant geopolitical influence globally . The U.S. national government is a presidential constitutional federal republic and liberal democracy with three separate branches : legislative , executive , and judicial . It has a bicameral national legislature composed of

7701-591: The Spanish–American War . (The Philippines was granted full independence from the U.S. on July 4, 1946, following World War II. Puerto Rico and Guam have remained U.S. territories.) American Samoa was acquired by the United States in 1900 after the Second Samoan Civil War . The U.S. Virgin Islands were purchased from Denmark in 1917. The United States entered World War I alongside

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7852-447: The Trinity River , close to the site of modern Crockett . Texas lies between two major cultural spheres of Pre-Columbian North America : the Southwestern and the Plains areas. Archaeologists have found that three major Indigenous cultures lived in this territory, and reached their developmental peak before the first European contact. These were: the Ancestral Puebloans from the upper Rio Grande region, centered west of Texas;

8003-399: The cotton gin made the institution increasingly profitable for Southern elites . This sectional conflict regarding slavery culminated in the American Civil War (1861–1865). Eleven slave states seceded and formed the Confederate States of America , while the other states remained in the Union . War broke out in April 1861 after the Confederates bombarded Fort Sumter . After

8154-504: The election of 1860 . During this time, Black people comprised 30 percent of the state's population, and they were overwhelmingly enslaved. When Abraham Lincoln was elected, South Carolina seceded from the Union; five other Deep South states quickly followed. A state convention considering secession opened in Austin on January 28, 1861. On February 1, by a vote of 166–8, the convention adopted an Ordinance of Secession . Texas voters approved this Ordinance on February 23, 1861. Texas joined

8305-413: The fall of communism and the collapse of the Soviet Union , which marked the end of the Cold War and left the United States as the world's sole superpower . The 1990s saw the longest recorded economic expansion in American history , a dramatic decline in U.S. crime rates , and advances in technology . Throughout this decade, technological innovations such as the World Wide Web , the evolution of

8456-571: The federalists against the government and drove all Mexican soldiers out of East Texas. They took advantage of the lack of oversight to agitate for more political freedom. Texians met at the Convention of 1832 to discuss requesting independent statehood, among other issues. The following year, Texians reiterated their demands at the Convention of 1833 . Within Mexico, tensions continued between federalists and centralists. In early 1835, wary Texians formed Committees of Correspondence and Safety. The unrest erupted into armed conflict in late 1835 at

8607-445: The largest nominal GDP since about 1890 and accounted for over 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 economic competitiveness , productivity , innovation , human rights , and higher education . Its hard power and cultural influence have

8758-406: The 1775 Battles of Lexington and Concord , igniting the American Revolutionary War . At the Second Continental Congress , the colonies appointed George Washington commander-in-chief of the Continental Army , and created a committee that named Thomas Jefferson to draft the Declaration of Independence . Two days after passing the Lee Resolution to create an independent nation the Declaration

8909-408: The 1775–1783 Revolutionary War , the country continued to expand westward across North America , resulting in the dispossession of native inhabitants . As more states were admitted , a North–South division over slavery led to the secession of the Confederate States of America , which fought states remaining in the Union in the 1861–1865 American Civil War . With the victory and preservation of

9060-466: The 2010s, political polarization in the country increased between liberal and conservative factions. This polarization was capitalized upon in the January 2021 Capitol attack , when a mob of insurrectionists entered the U.S. Capitol and sought to prevent the peaceful transfer of power in an attempted self-coup d'état . The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and

9211-426: The American West have an alpine climate . The climate is arid in the Southwest, Mediterranean in coastal California , and oceanic in coastal Oregon , Washington , and southern Alaska . Most of Alaska is subarctic or polar . Hawaii , the southern tip of Florida and U.S. territories in the Caribbean and Pacific are tropical . States bordering the Gulf of Mexico are prone to hurricanes, and most of

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9362-523: The Caddo meant that few were converted. Positioned between French Louisiana and Spanish Texas, the Caddo maintained relations with both, but were closer with the French. After Spain took control of Louisiana, most of the missions in eastern Texas were closed and abandoned. The United States obtained Louisiana following the 1803 Louisiana Purchase and began convincing tribes to self-segregate from whites by moving west; facing an overflow of native peoples in Missouri and Arkansas, they were able to negotiate with

9513-403: The Caddo of Louisiana and Arkansas. Following the Texas Revolution, the Texans chose to make peace with the Indigenous people, but did not honor former land claims or agreements. The first president of Texas, Sam Houston , aimed to cooperate and make peace with Native tribes, but his successor, Mirabeau B. Lamar , took a much more hostile stance. Hostility towards Natives by white Texans prompted

9664-457: The Caddo to allow several displaced peoples to settle on unused lands in eastern Texas. These included the Muscogee , Houma Choctaw , Lenape and Mingo Seneca , among others, who came to view the Caddoans as saviors. The temperament of Native American tribes affected the fates of European explorers and settlers in that land. Friendly tribes taught newcomers how to grow local crops, prepare foods, and hunt wild game . Warlike tribes resisted

9815-411: The Caddo, with the U.S. government trying to keep them in check. The Caddo never turned to violence because of the situation, except in cases of self-defense. By the 1830s, the U.S. had drafted the Indian Removal Act, which was used to facilitate the Trail of Tears. Fearing retribution, Indian Agents all over the eastern U.S. tried to convince all Indigenous peoples to uproot and move west. This included

9966-413: The Caddo. After Caddo resistance, the Spanish missionaries returned to Mexico. When France began settling Louisiana , in 1716 Spanish authorities responded by founding a new series of missions in East Texas. Two years later, they created San Antonio as the first Spanish civilian settlement in the area. Hostile native tribes and distance from nearby Spanish colonies discouraged settlers from moving to

10117-411: The Civil War and the restoration of its representation in the federal government, Texas entered a long period of economic stagnation. Historically, five major industries shaped the Texas economy prior to World War II : cattle, bison, cotton, timber, and oil. Before and after the Civil War, the cattle industry—which Texas came to dominate—was a major economic driver and created the traditional image of

10268-471: The Confederacy, Houston was deposed. While far from the major battlefields of the American Civil War , Texas contributed large numbers of soldiers and equipment. Union troops briefly occupied the state's primary port, Galveston. Texas's border with Mexico was known as the "backdoor of the Confederacy" because trade occurred at the border, bypassing the Union blockade. The Confederacy repulsed all Union attempts to shut down this route, but Texas's role as

10419-429: The Convention disbanded. The new government joined the other settlers in Texas in the Runaway Scrape , fleeing from the approaching Mexican army. After several weeks of retreat, the Texian Army commanded by Sam Houston attacked and defeated López de Santa Anna's forces at the Battle of San Jacinto . López de Santa Anna was captured and forced to sign the Treaties of Velasco , ending the war. The Constitution of

10570-420: The Declaration of Independence on July 4, 1776. The term "United States" and the initialism "U.S.", used as nouns or as adjectives in English, are common short names for the country. The initialism "USA", a noun, is also common. "United States" and "U.S." are the established terms throughout the U.S. federal government , with prescribed rules. In English, the term "America" rarely refers to topics unrelated to

10721-404: The District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The coastal plain of the Atlantic seaboard gives way to inland forests and rolling hills in the Piedmont plateau region. The Appalachian Mountains and the Adirondack massif separate the East Coast from the Great Lakes and the grasslands of the Midwest . The Mississippi River System ,

10872-573: The Elder concluded that major military resources needed to be devoted to North America to win the war against France. For the first time, the continent became one of the main theaters of what could be termed a " world war ". The British colonies' position as an integral part of the British Empire became more apparent during the war, with British military and civilian officials becoming a more significant presence in American life. The war increased

11023-532: The ISO standard. For example, park K-0001 became US-0001; I-0001 became IT-0001. Also, territories of countries would get their own designation to match their DXCC island entities, for example, park K-0110 in Guam became GU-0001. Amateur radio operators who set up a temporary station at a park are known as activators , while others who 'spot' and complete contacts with them are called hunters . Activations can take place on

11174-631: The January 1863 Emancipation Proclamation , many freed slaves joined the Union army . The war began to turn in the Union's favor following the 1863 Siege of Vicksburg and Battle of Gettysburg , and the Confederacy surrendered in 1865 after the Union's victory in the Battle of Appomattox Court House . The Reconstruction era followed the war. After the assassination of President Abraham Lincoln , Reconstruction Amendments were passed to protect

11325-527: The Mexican Territory of Santa Fe de Nuevo México . Hoping more settlers would reduce the near-constant Comanche raids, Mexican Texas liberalized its immigration policies to permit immigrants from outside Mexico and Spain. Large swathes of land were allotted to empresarios , who recruited settlers from the United States, Europe, and the Mexican interior, primarily the U.S. Austin's settlers,

11476-426: The Mexican states of Chihuahua , Coahuila , Nuevo León , and Tamaulipas to the south. The Red River forms a natural border with Oklahoma and Arkansas to the north. The Sabine River forms a natural border with Louisiana to the east. The Texas Panhandle has an eastern border with Oklahoma at 100° W , a northern border with Oklahoma at 36°30' N and a western border with New Mexico at 103° W . El Paso lies on

11627-486: The Northern United States or California and to escape segregation. In 1940, Texas was 74% White , 14.4% Black, and 11.5% Hispanic. World War II had a dramatic impact on Texas, as federal money poured in to build military bases, munitions factories, detention camps and Army hospitals; 750,000 Texans left for service; the cities exploded with new industry; and hundreds of thousands of poor farmers left

11778-558: The Philippines'), or as provincia de los Tejas ('province of the Tejas '), later also provincia de Texas (or de Tejas ), ('province of Texas'). It was incorporated as provincia de Texas into the Mexican Empire in 1821, and declared a republic in 1836. The Royal Spanish Academy recognizes both spellings, Tejas and Texas , as Spanish-language forms of the name. The English pronunciation with /ks/

11929-527: The Republic of Texas prohibited the government from restricting slavery or freeing slaves, and required free people of African descent to leave the country. Political battles raged between two factions of the new Republic. The nationalist faction, led by Mirabeau B. Lamar , advocated the continued independence of Texas, the expulsion of the Native Americans , and the expansion of the Republic to

12080-749: The Rio Grande in the western portion of the state and the Athabaskan-speaking Apache tribes lived throughout the interior. The agricultural, mound-building Caddo controlled much of the northeastern part of the state, along the Red , Sabine , and Neches River basins. Atakapan peoples such as the Akokisa and Bidai lived along the northeastern Gulf Coast; the Karankawa lived along the central coast. At least one tribe of Coahuiltecans ,

12231-635: The Rio Grande on January 13, 1846. A few months later Mexican troops routed an American cavalry patrol in the disputed area in the Thornton Affair starting the Mexican–American War . The first battles of the war were fought in Texas: the Siege of Fort Texas , Battle of Palo Alto and Battle of Resaca de la Palma . After these decisive victories, the United States invaded Mexican territory, ending

12382-611: The Rocky Mountains, the Yellowstone Caldera , is the continent's largest volcanic feature. In 2021, the United States had 8% of global permanent meadows and pastures and 10% of cropland. With its large size and geographic variety, the United States includes most climate types. East of the 100th meridian , the climate ranges from humid continental in the north to humid subtropical in the south. The western Great Plains are semi-arid . Many mountainous areas of

12533-399: The Texas cowboy. In the later 19th century, cotton and lumber grew to be major industries as the cattle industry became less lucrative. Ultimately, the discovery of major petroleum deposits ( Spindletop in particular) initiated an economic boom that became the driving force behind the economy for much of the 20th century. Texas developed a diversified economy and high tech industry during

12684-657: The Texian resistance along the coast culminating in the Goliad massacre . López de Santa Anna's forces, after a thirteen-day siege , overwhelmed Texian defenders at the Battle of the Alamo . News of the defeats sparked panic among Texas settlers. The newly elected Texian delegates to the Convention of 1836 quickly signed a declaration of independence on March 2, forming the Republic of Texas . After electing interim officers,

12835-611: The U.S. After Texas's annexation, Mexico broke diplomatic relations with the United States. While the United States claimed Texas's border stretched to the Rio Grande, Mexico claimed it was the Nueces River leaving the Rio Grande Valley under contested Texan sovereignty. While the former Republic of Texas could not enforce its border claims, the United States had the military strength and the political will to do so. President Polk ordered General Zachary Taylor south to

12986-647: The U.S. has become a key ally of Ukraine ; it has also provided the country with significant military equipment and other support in response to Russia's 2022 invasion . The president is the commander-in-chief of the United States Armed Forces and appoints its leaders, the secretary of defense and the Joint Chiefs of Staff . The Department of Defense , which is headquartered at the Pentagon near Washington, D.C., administers five of

13137-661: The U.S. territories." Despite disparate systems of confinement, four main institutions dominate: federal prisons , state prisons , local jails, and juvenile correctional facilities . Federal prisons are run by the Federal Bureau of Prisons and hold people who have been convicted of federal crimes, including pretrial detainees. State prisons, run by the official department of correction of each state, hold sentenced people serving prison time (usually longer than one year) for felony offenses. Local jails are county or municipal facilities that incarcerate defendants prior to trial; they also hold those serving short sentences (typically under

13288-464: The United States and the peaceful transfer of power , respectively. The Louisiana Purchase of 1803 from France nearly doubled the territory of the United States. Lingering issues with Britain remained , leading to the War of 1812 , which was fought to a draw. Spain ceded Florida and its Gulf Coast territory in 1819. In the late 18th century, American settlers began to expand westward , many with

13439-775: The United States entered the Cold War, where geopolitical tensions between the U.S. and the Soviet Union led the two countries to dominate world affairs . The U.S. utilized the policy of containment to limit the USSR's sphere of influence, and prevailed in the Space Race , which culminated with the first crewed Moon landing in 1969. Domestically, the U.S. experienced economic growth , urbanization , and population growth following World War II . The civil rights movement emerged, with Martin Luther King Jr. becoming

13590-666: The United States has operated as a de facto two-party system , though the parties in that system have been different at different times. The two main national parties are presently the Democratic and the Republican . The former is perceived as relatively liberal in its political platform while the latter is perceived as relatively conservative . In the American federal system , sovereign powers are shared between two levels of elected government: national and state. People in

13741-593: The United States in 2001 by the pan-Islamist militant organization al-Qaeda led to the war on terror , and subsequent military interventions in Afghanistan and Iraq . The cultural impact of the attacks was profound and long-lasting. The U.S. housing bubble culminated in 2007 with the Great Recession , the largest economic contraction since the Great Depression. Coming to a head in

13892-535: The United States of America as the 28th state. The state's annexation set off a chain of events that led to the Mexican–American War in 1846. Following victory by the United States, Texas remained a slave state until the American Civil War , when it declared its secession from the Union in early 1861 before officially joining the Confederate States of America on March   2. After

14043-656: The United States of America to Spain" to seek assistance in the Revolutionary War effort. The first known public usage is an anonymous essay published in the Williamsburg newspaper, The Virginia Gazette , on April 6, 1776. By June 1776, the "United States of America" appeared in the Articles of Confederation and the Declaration of Independence . The Second Continental Congress adopted

14194-601: The United States, slavery was abolished nationally . By 1900, the country had established itself as a great power , a status solidified after its involvement in World War I . After Japan 's attack on Pearl Harbor in December 1941, the U.S. entered World War II . Its aftermath left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War , during which both countries struggled for ideological dominance and international influence . Following

14345-541: The United States, despite the usage of "the Americas " as the totality of North and South America. "The States" is an established colloquial shortening of the name, used particularly from abroad; "stateside" is the corresponding adjective or adverb. The first inhabitants of North America migrated from Siberia across the Bering land bridge about 12,000 years ago; the Clovis culture , which appeared around 11,000 BC,

14496-624: The United States, except Iran , North Korea , and Bhutan . Though Taiwan does not have formal diplomatic relations with the U.S., it maintains close unofficial relations. The United States regularly supplies Taiwan with military equipment to deter potential Chinese aggression. Its geopolitical attention also turned to the Indo-Pacific when the United States joined the Quadrilateral Security Dialogue with Australia, India, and Japan. The United States has

14647-497: The United States. However, illegal immigration from the United States into Mexico continued to increase the population of Texas. New laws also called for the enforcement of customs duties angering native Mexican citizens ( Tejanos ) and recent immigrants alike. The Anahuac Disturbances in 1832 were the first open revolt against Mexican rule, coinciding with a revolt in Mexico against the nation's president. Texians sided with

14798-509: The United States. The American prison system is largely heterogenous, with thousands of relatively independent systems operating across federal, state, local, and tribal levels. In 2023, "these systems [held] almost 2 million people in 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails, as well as in military prisons , civil commitment centers, state psychiatric hospitals, and prisons in

14949-475: The agreement. Several filibusters raised armies to invade the area west of the Sabine River. Marked by the War of 1812 , some men who had escaped from the Spanish, held (Old) Philippines had immigrated to and also passed through Texas (New Philippines) and reached Louisiana where Philippine exiles aided the United States in the defense of New Orleans against a British invasion, with Filipinos in

15100-578: The area. It was one of New Spain's least populated provinces. In 1749, the Spanish peace treaty with the Lipan Apache angered many tribes, including the Comanche, Tonkawa, and Hasinai. The Comanche signed a treaty with Spain in 1785 and later helped to defeat the Lipan Apache and Karankawa tribes. With numerous missions being established, priests led a peaceful conversion of most tribes. By

15251-566: The colony of Fort Saint Louis at Matagorda Bay rather than along the Mississippi River . The colony lasted only four years before succumbing to harsh conditions and hostile natives. A small band of survivors traveled eastward into the lands of the Caddo, but La Salle was killed by disgruntled expedition members. In 1690 Spanish authorities, concerned that France posed a competitive threat, constructed several missions in East Texas among

15402-457: The contiguous United States are in the State of California, about 84 miles (135 km) apart. At an elevation of 20,310 feet (6,190.5 m), Alaska's Denali is the highest peak in the country and continent. Active volcanoes are common throughout Alaska's Alexander and Aleutian Islands , and Hawaii consists of volcanic islands. The supervolcano underlying Yellowstone National Park in

15553-556: The country's GDP. The U.S. has 42% of the world's nuclear weapons —the second-largest share after Russia. The United States has the third-largest combined armed forces in the world, behind the Chinese People's Liberation Army and Indian Armed Forces . The military operates about 800 bases and facilities abroad, and maintains deployments greater than 100 active duty personnel in 25 foreign countries. State defense forces (SDFs) are military units that operate under

15704-469: The country's territory would expand with the admission of new states , rather than the expansion of existing states. The U.S. Constitution was drafted at the 1787 Constitutional Convention to overcome the limitations of the Articles. It went into effect in 1789, creating a federal republic governed by three separate branches that together ensured a system of checks and balances . George Washington

15855-618: The desert and mountains of the Big Bend . The name Texas , based on the Caddo word táy:shaʼ ( /tə́jːʃaʔ/ ) 'friend', was applied, in the spelling Tejas or Texas , by the Spanish to the Caddo themselves, specifically the Hasinai Confederacy. During Spanish colonial rule , in the 18th century, the area was known as Nuevas Filipinas (' New Philippines ') and Nuevo Reino de Filipinas ('New Kingdom of

16006-713: The development of self-governance, and the First Great Awakening , a series of Christian revivals , fueled colonial interest in religious liberty . For a century, the American colonists had been providing their own troops and materiel in conflicts with indigenous peoples allied with Britain's colonial rivals , especially France, and the Americans had begun to develop a sense of self-defense and self-reliance separate from Britain. The French and Indian War (1754–1763) took on new significance for all North American colonists after Parliament under William Pitt

16157-545: The early months of Reconstruction . Juneteenth commemorates the announcement of the Emancipation Proclamation in Galveston by General Gordon Granger, almost two and a half years after the original announcement. President Johnson, in 1866, declared the civilian government restored in Texas. Despite not meeting Reconstruction requirements, Congress resumed allowing elected Texas representatives into

16308-595: The east, seeking a route to Mexico. They passed through the Caddo lands but turned back after reaching the River of Daycao (possibly the Brazos or Colorado), beyond which point the Native peoples were nomadic and did not have the agricultural stores to feed the expedition. European powers ignored the area until accidentally settling there in 1685. Miscalculations by René-Robert Cavelier de La Salle resulted in his establishing

16459-479: The economy. Amid a rise in COVID-19 cases in autumn 2020, Abbott refused to enact further lockdowns. In November 2020, Texas was selected as one of four states to test Pfizer's COVID-19 vaccine distribution. As of February 2, 2021, there had been over 2.4 million confirmed cases in Texas, with at least 37,417 deaths. During February 13–17, 2021, the state faced a major weather emergency as Winter Storm Uri hit

16610-476: The end of the 18th century only a few nomadic tribes had not converted. When the United States purchased Louisiana from France in 1803, American authorities insisted the agreement also included Texas. The boundary between New Spain and the United States was finally set in 1819 at the Sabine River , the modern border between Texas and Louisiana. Eager for new land, many U.S. settlers refused to recognize

16761-580: The environment for labor unions to begin to flourish . This period eventually ended with the advent of the Progressive Era , which was characterized by significant reforms. Pro-American elements in Hawaii overthrew the Hawaiian monarchy ; the islands were annexed in 1898. That same year, Puerto Rico , the Philippines , and Guam were ceded to the U.S. by Spain after the latter's defeat in

16912-514: The federal government for their opposition to U.S. involvement in World War I . The Great Depression and the Dust Bowl dealt a double blow to the state's economy, which had significantly improved since the Civil War. Migrants abandoned the worst-hit sections of Texas during the Dust Bowl years. Especially from this period on, Black people left Texas in the Great Migration to get work in

17063-453: The federal government in 1870. Social volatility continued as the state struggled with agricultural depression and labor issues. Like most of the South, the Texas economy was devastated by the War. However, since the state had not been as dependent on slaves as other parts of the South, it was able to recover more quickly. The culture in Texas during the later 19th century exhibited many facets of

17214-474: The federal government often applied policies of Indian removal or assimilation . The Trail of Tears (1830–1850) was a U.S. government policy that forcibly removed and displaced most Native Americans living east of the Mississippi River to lands far to the west. These and earlier organized displacements prompted a long series of American Indian Wars west of the Mississippi. The Republic of Texas

17365-406: The fields for much better-paying war jobs, never to return to agriculture. Texas manufactured 3.1 percent of total United States military armaments produced during World War II, ranking eleventh among the 48 states. Texas modernized and expanded its system of higher education through the 1960s. The state created a comprehensive plan for higher education, funded in large part by oil revenues, and

17516-604: The fighting in Texas. The Treaty of Guadalupe Hidalgo ended the two-year war. In return for US$ 18,250,000, Mexico gave the U.S. undisputed control of Texas, ceded the Mexican Cession in 1848, most of which today is called the American Southwest, and Texas's borders were established at the Rio Grande. The Compromise of 1850 set Texas's boundaries at their present position: Texas ceded its claims to land which later became half of present-day New Mexico ,

17667-500: The first Europeans in what is now Texas. Cabeza de Vaca reported that in 1528, when the Spanish landed in the area, "half the natives died from a disease of the bowels and blamed us." Cabeza de Vaca also made observations about the way of life of the Ignaces Natives of Texas. Francisco Vázquez de Coronado described another encounter with native people in 1541. The expedition of Hernando de Soto entered into Texas from

17818-606: The first nuclear weapons and used them against the Japanese cities of Hiroshima and Nagasaki in August 1945, ending the war. The United States was one of the " Four Policemen " who met to plan the post-war world , alongside the United Kingdom , Soviet Union , and China . The U.S. emerged relatively unscathed from the war, with even greater economic power and international political influence . After World War II,

17969-580: The formal political process. The number of voters dropped dramatically, and the Democrats crushed competition from the Republican and Populist parties. The Socialist Party became the second-largest party in Texas after 1912, coinciding with a large socialist upsurge in the United States during fierce battles in the labor movement and the popularity of national heroes like Eugene V. Debs . The socialists' popularity soon waned after their vilification by

18120-864: The initiative of an individual operator, or as part of organized group events such as Field Days. Equipment used is typically small, battery operated, and may have been constructed by the operator themselves. The radio may be hand-held, carried in a backpack or a 'go box', or it could be mounted in a vehicle, as permitted by the park operator. Antennas may be small enough to form part of a hand-held unit for VHF and UHF operations, or be ground-spike or tripod-mounted temporary whips or loops for longer radio wavelengths. Where permitted by local regulations, kites, trees or lightweight masts and fishing poles are sometimes used to suspend wire antennas as high as possible to optimise performance. In this way, with patience, skill, and good luck with propagation conditions, contacts can sometimes be made worldwide using radios little larger than

18271-463: The integration of Army National Guard units and personnel into the U.S. Army and (since 1947) the U.S. Air Force. There are about 18,000 U.S. police agencies from local to national level in the United States. Law in the United States is mainly enforced by local police departments and sheriff departments in their municipal or county jurisdictions. The state police departments have authority in their respective state , and federal agencies such as

18422-500: The mid-20th century. As of 2022 , it has the most Fortune 500 company headquarters (53) in the United States. With a growing base of industry, the state leads in many industries, including tourism , agriculture , petrochemicals , energy , computers and electronics , aerospace , and biomedical sciences . Texas has led the U.S. in state export revenue since 2002 and has the second-highest gross state product . The Dallas–Fort Worth metroplex and Greater Houston areas are

18573-482: The military draft (leading to the end of conscription in 1973) and wide opposition to U.S. intervention in Vietnam (with the U.S. totally withdrawing in 1975). A societal shift in the roles of women was significantly responsible for the large increase in female paid labor participation during the 1970s, and by 1985 the majority of American women aged 16 and older were employed. The late 1980s and early 1990s saw

18724-612: The most attractive to the population are the most vulnerable. The U.S. is one of 17 megadiverse countries containing large numbers of endemic species : about 17,000 species of vascular plants occur in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found in Hawaii, few of which occur on the mainland. The United States is home to 428 mammal species, 784 birds, 311 reptiles, 295 amphibians , and around 91,000 insect species. There are 63 national parks , and hundreds of other federally managed parks, forests, and wilderness areas , managed by

18875-604: The most violent, the California genocide of thousands of Native inhabitants, lasted into the early 1870s, just as additional western territories and states were created. During the colonial period, slavery had been legal in the American colonies , though the practice began to be significantly questioned during the American Revolution. States in the North enacted abolition laws , though support for slavery strengthened in Southern states , as inventions such as

19026-697: The movement of most Native populations north into what would become Indian Territory (modern Oklahoma). Only the Alabama-Coushatta would remain in the parts of Texas subject to white settlement, though the Comanche would continue to control most of the western half of the state until their defeat in the 1870s and 1880s. The first historical document related to Texas was a map of the Gulf Coast , created in 1519 by Spanish explorer Alonso Álvarez de Pineda . Nine years later, shipwrecked Spanish explorer Álvar Núñez Cabeza de Vaca and his cohort became

19177-625: The nation's fourth and fifth-most populous urban regions respectively. Its capital city is Austin . Due to its size and geologic features such as the Balcones Fault , Texas contains diverse landscapes common to both the U.S. Southern and the Southwestern regions . Most population centers are in areas of former prairies , grasslands , forests, and the coastline . Traveling from east to west, terrain ranges from coastal swamps and piney woods , to rolling plains and rugged hills, to

19328-486: The newly created Confederate States of America on March 4, 1861, ratifying the permanent C.S. Constitution on March 23. Not all Texans favored secession initially, although many of the same would later support the Southern cause. Texas's most notable Unionist was the state governor, Sam Houston . Not wanting to aggravate the situation, Houston refused two offers from President Lincoln for Union troops to keep him in office. After refusing to swear an oath of allegiance to

19479-598: The north and Mexico to the south, with the states of Alaska to the northwest and the archipelagic Hawaii in the Pacific Ocean . The United States also asserts sovereignty over five major island territories and various uninhabited islands . The country has the world's third-largest land area , largest exclusive economic zone , and third-largest population , exceeding 334 million. Its three largest metropolitan areas are New York , Los Angeles , and Chicago , and its three most populous states are California , Texas , and Florida . Paleo-Indians migrated across

19630-406: The north or east during the colonial period, such as the Choctaw , Alabama-Coushatta, and Delaware . The region was primarily controlled by the Spanish until the Texas Revolution . They were most interested in relationships with the Caddo, who were—like the Spanish—a settled, agricultural people. Several Spanish missions were opened in Caddo territory, but a lack of interest in Christianity among

19781-408: The policy of redlining later adopted by the federal Home Owners' Loan Corporation . An explosion of technological advancement accompanied by the exploitation of cheap immigrant labor led to rapid economic expansion during the late 19th and early 20th centuries , allowing the United States to outpace the economies of England, France, and Germany combined. This fostered the amassing of power by

19932-434: The port at Galveston as commerce expanded. The lumber industry quickly expanded and was Texas' largest industry prior to the 20th century. In 1900, Texas suffered the deadliest natural disaster in U.S. history during the Galveston hurricane . On January 10, 1901, the first major oil well in Texas, Spindletop , was found south of Beaumont . Other fields were later discovered nearby in East Texas , West Texas , and under

20083-420: The primary colonial grievances was a denial of their rights as Englishmen , particularly the right to representation in the British government that taxed them . To demonstrate their dissatisfaction and resolve, the First Continental Congress met in 1774 and passed the Continental Association , a colonial boycott of British goods that proved effective. The British attempt to then disarm the colonists resulted in

20234-515: The rights of African Americans . National infrastructure, including transcontinental telegraph and railroads , spurred growth in the American frontier . From 1865 through 1917 an unprecedented stream of immigrants arrived in the United States, including 24.4 million from Europe. Most came through the port of New York City , and New York City and other large cities on the East Coast became home to large Jewish , Irish , and Italian populations, while many Germans and Central Europeans moved to

20385-437: The rocky Great Basin and Chihuahua , Sonoran , and Mojave deserts. In the northwest corner of Arizona , carved by the Colorado River over millions of years, is the Grand Canyon , a steep-sided canyon and popular tourist destination known for its overwhelming visual size and intricate, colorful landscape. The Sierra Nevada and Cascade mountain ranges run close to the Pacific coast . The lowest and highest points in

20536-429: The settlers. Prior treaties with the Spanish forbade either side from militarizing its native population in any potential conflict between the two nations. Several outbreaks of violence between Native Americans and Texans started to spread in the prelude to the Texas Revolution. Texans accused tribes of stealing livestock. While no proof was found, those in charge of Texas at the time attempted to publicly blame and punish

20687-464: The six service branches, which are made up of the U.S. Army , Marine Corps , Navy , Air Force , and Space Force . The Coast Guard is administered by the Department of Homeland Security in peacetime and can be transferred to the Department of the Navy in wartime. The United States spent $ 916 billion on its military in 2023, which is by far the largest amount of any country , making up 37% of global military spending and accounting for 3.4% of

20838-407: The sole authority of a state government. SDFs are authorized by state and federal law but are under the command of the state's governor . They are distinct from the state's National Guard units in that they cannot become federalized entities. A state's National Guard personnel, however, may be federalized under the National Defense Act Amendments of 1933 , which created the Guard and provides for

20989-450: The state, as well as most of the Southeastern and Midwestern United States. Historically high power usage across the state caused the state's power grid to become overworked and ERCOT (the main operator of the Texas Interconnection grid) declared an emergency and began to implement rolling blackouts across Texas, causing a power crisis . Over 3 million Texans were without power and over 4 million were under boil-water notices. Texas

21140-543: The states are also represented by local elected governments , which are administrative divisions of the states. States are subdivided into counties or county equivalents , and further divided into municipalities . The District of Columbia is a federal district containing the U.S. capital, Washington, D.C. . The federal district is an administrative division of the federal government. Federally recognized tribes govern 326 Indian reservations . The United States has an established structure of foreign relations, and it has

21291-451: The structure and responsibilities of the national federal government and its relationship with the individual states. The U.S. Constitution is the world's oldest national constitution still in effect (from March 4, 1789). Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances . The three-branch system

21442-406: The world's fourth-longest river system , runs predominantly north–south through the heart of the country. The flat and fertile prairie of the Great Plains stretches to the west, interrupted by a highland region in the southeast. The Rocky Mountains , west of the Great Plains, extend north to south across the country, peaking at over 14,000 feet (4,300 m) in Colorado . Farther west are

21593-449: The world's second-largest diplomatic corps as of 2024 . It is a permanent member of the United Nations Security Council , and home to the United Nations headquarters . The United States is a member of the G7 , G20 , and OECD intergovernmental organizations. Almost all countries have embassies and many have consulates (official representatives) in the country. Likewise, nearly all countries host formal diplomatic missions with

21744-444: The world's oldest surviving federation, and its presidential system of national government has been adopted, in whole or in part, by many newly independent states worldwide following their decolonization . It is a liberal representative democracy "in which majority rule is tempered by minority rights protected by law ". The Constitution of the United States serves as the country's supreme legal document , also establishing

21895-423: The world's tornadoes occur in the country , mainly in Tornado Alley . Overall, the United States receives more high-impact extreme weather incidents than any other country. Extreme weather became more frequent in the U.S. in the 21st century, with three times the number of reported heat waves as in the 1960s. In the American Southwest , droughts became more persistent and more severe. The regions considered as

22046-504: The world, with almost 2 million people incarcerated . An analysis of the World Health Organization Mortality Database from 2010 showed U.S. homicide rates "were 7 times higher than in other high-income countries, driven by a gun homicide rate that was 25 times higher". Texas Texas ( / ˈ t ɛ k s ə s / TEK -səss , locally also / ˈ t ɛ k s ɪ z / TEK -siz ; Spanish : Texas or Tejas , pronounced [ˈtexas] )

22197-458: Was annexed in 1845, and the 1846 Oregon Treaty led to U.S. control of the present-day American Northwest . Victory in the Mexican–American War resulted in the 1848 Mexican Cession of California, Nevada, Utah, and much of present-day Colorado and the American Southwest . The California gold rush of 1848–1849 spurred a huge migration of white settlers to the Pacific coast, leading to even more confrontations with Native populations. One of

22348-703: Was adopted on July 4, 1776. The political values of the American Revolution included liberty , inalienable individual rights ; and the sovereignty of the people ; supporting republicanism and rejecting monarchy , aristocracy , and all hereditary political power; civic virtue ; and vilification of political corruption . The Founding Fathers of the United States , who included Washington, Jefferson, John Adams , Benjamin Franklin , Alexander Hamilton , John Jay , James Madison , Thomas Paine , and many others, were inspired by Greco-Roman , Renaissance , and Enlightenment philosophies and ideas. The Articles of Confederation were ratified in 1781 and established

22499-408: Was captured twice and Texans were defeated in battle in the Dawson massacre . Despite these successes, Mexico did not keep an occupying force in Texas, and the republic survived. The cotton price crash of the 1840s depressed the country's economy. Texas was finally annexed when the expansionist James K. Polk won the election of 1844 . On December 29, 1845, the U.S. Congress admitted Texas to

22650-404: Was elected the country's first president under the Constitution, and the Bill of Rights was adopted in 1791 to allay skeptics' concerns about the power of the more centralized government. His resignation as commander-in-chief after the Revolutionary War and his later refusal to run for a third term as the country's first president established a precedent for the supremacy of civil authority in

22801-410: Was initially rebuffed. This status, and Mexican diplomacy in support of its claims to the territory, also complicated Texas's ability to form foreign alliances and trade relationships. The Comanche Indians furnished the main Native American opposition to the Texas Republic, manifested in multiple raids on settlements . Mexico launched two small expeditions into Texas in 1842. The town of San Antonio

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