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85-757: The Third Street Bridge , officially known as the David Morgan Memorial Bridge , is a span that crosses the Monongahela River , in Fairmont, West Virginia . The bridge has a characteristic curve in it, and was built in 1979 in order to relieve some of the traffic from the Robert H. Mollohan-Jefferson Street Bridge after the Low Level Bridge had closed. This article about a bridge in West Virginia
170-981: A Farmer in Pennsylvania, To the Inhabitants of the British Colonies , which were published in the Pennsylvania Chronicle between December 2, 1767, and February 15, 1768. When the Founding Fathers convened in Philadelphia in 1774, 12 colonies sent representatives to the First Continental Congress . The Second Continental Congress , which began in May 1775, authored and signed the Declaration of Independence in Philadelphia, but when Philadelphia fell to
255-776: A bit of a detour northeast 10 miles south of Pittsburgh to approach Pittsburgh from the southeast and its confluence with the Allegheny River to form the Forks of the Ohio at "The Point" of Point State Park in Downtown Pittsburgh . Prior to early Pleistocene regional glaciation, more than 780,000 years ago, the ancestral Monongahela River (a.k.a. the Pittsburgh River) flowed northward from present-day north-central West Virginia, across western Pennsylvania and northwestern Ohio, and into
340-723: A century, the Pennsylvania General Assembly met at various places in the Philadelphia area before it began meeting regularly in Independence Hall in Philadelphia for 63 years. However, events such as the Paxton Boys massacres of 1763 had made the legislature aware of the need for a central capital. In 1799, the General Assembly moved to the Lancaster Courthouse. The Pennsylvania General Assembly met in
425-512: A grant that incorporated all lands included in the original Virginia Company of Plymouth Grant and other lands. This grant was in conflict with the Dutch claim for New Netherland , which included parts of today's Pennsylvania. On June 24, 1664, the Duke of York sold the portion of his large grant that included present-day New Jersey to John Berkeley and George Carteret for a proprietary colony. The land
510-451: A heavy snowstorm, presumably because of a faulty flue . The General Assembly met at a nearby Methodist Church until a new capitol could be built. Following an architectural selection contest, Chicago architect Henry Ives Cobb was asked to design and build a replacement building. However, the legislature had little money to allocate to the project. When they dubbed the roughly finished, somewhat industrial Cobb Capitol building complete,
595-457: A leader in technology and healthcare. Similarly, Philadelphia has a concentration of university expertise. Healthcare, retail, transportation, and tourism are some of the state's growing industries of the postindustrial era. As in the rest of the nation, most residential population growth has occurred in suburban rather than central city areas, although both major cities have had significant revitalization in their downtown areas. Philadelphia anchors
680-693: A vital and historic role in the American Revolution and the ultimately successful quest for independence from the British Empire , hosting the First and Second Continental Congress in Philadelphia , which formed the Continental Army and appointed George Washington as its commander in 1775, and unanimously adopted the Declaration of Independence the following year. On December 12, 1787, Pennsylvania
765-557: Is a stub . You can help Misplaced Pages by expanding it . Monongahela River The Monongahela River ( / m ə ˌ n ɒ ŋ ɡ ə ˈ h iː l ə / mə- NONG -gə- HEE -lə , /- ˈ h eɪ -/ - HAY - ), sometimes referred to locally as the Mon ( / m ɒ n / ), is a 130-mile-long (210 km) river on the Allegheny Plateau in north-central West Virginia and Southwestern Pennsylvania . The river flows from
850-827: Is in Duncannon in Perry County . According to the U.S. Department of Housing and Urban Development 's 2022 Annual Homeless Assessment Report , there were an estimated 12,691 homeless people in Pennsylvania. Among Pennsylvania residents, as of 2020, nearly three out of four, 74.5%, are native to the state and were born in Pennsylvania, 18.4% were born in a different U.S. state, 1.5% were born in Puerto Rico , U.S. Island areas, or born abroad to American parent(s), and 5.6% were foreign born. Foreign-born Pennsylvanians are largely from Asia (36.0%), Europe (35.9%), and Latin America (30.6%) with
935-570: Is navigable its entire length with a series of locks and dams that maintain a minimum depth of 9 feet (2.7 m) to accommodate coal-laden barges. All dams are operated by the Pittsburgh District Army Corps of Engineers. In 2006, the navigation system, operated by the U.S. Army Corps of Engineers , had nine dam-locks along 128.7 miles (207.1 km) of waterway. The locks overcame a change in elevation of about 147 feet (44.8 m). The locks and dam at Elizabeth will be removed by
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#17330860347701020-586: Is of a very rugged plateau type which allows streams to gather sufficient water volume before they fall off the plateau and create challenging rapids. Some of the best known specific stream locations for this include: The Monongahela River valley was the site of a famous battle that was one of the first in the French and Indian War —the Braddock Expedition (May–July 1755). It resulted in a sharp defeat for two thousand British and Colonial forces against those of
1105-464: Is the fifth-most populated state in the U.S. after California , Texas , Florida , and New York . In 2019, net migration to other states resulted in a decrease of 27,718, and immigration from other countries resulted in an increase of 127,007. Net migration to Pennsylvania was 98,289. Migration of native Pennsylvanians resulted in a decrease of 100,000 people. 7.2% of the population was foreign-born as of 2021. Pennsylvania's center of population
1190-471: Is the southeastern Delaware Valley , which includes and surrounds Philadelphia, the state's largest and nation's sixth-most populous city. The second-largest metropolitan area, Greater Pittsburgh , is centered in and around Pittsburgh , the state's second-largest city. The state's subsequent five most populous cities are Allentown , Reading , Erie , Scranton , and Bethlehem . Pennsylvania's history of human habitation extends thousands of years before
1275-764: The British in the Philadelphia campaign , the Continental Congress moved west, where it met at the Lancaster courthouse on Saturday, September 27, 1777, and then to York . In York, the Second Continental Congress adopted the Articles of Confederation , largely authored by Pennsylvania delegate John Dickinson, that formed 13 independent States into a new union. Later, the Constitution was written, and Philadelphia
1360-817: The Delaware River in the east and the Susquehanna River in central Pennsylvania. The second tribe, the Susquehannock , spoke an Iroquoian language and were based in Western Pennsylvania from New York state in the north to West Virginia in the southwest, including the Susquehanna, Allegheny , and Monongahela rivers near present-day Pittsburgh . European disease and constant warfare with several neighboring tribes and groups of Europeans weakened these two tribes, and they were grossly outpaced financially as
1445-482: The Delaware River to the east, 80°31' W to the west, and the 42° N to the north, except for a short segment on the western end where a triangle extends north to Lake Erie . The state has five geographical regions: Allegheny Plateau , Ridge and Valley , Atlantic Coastal Plain , Piedmont , and Erie Plain . Pennsylvania's diverse topography produces a variety of climates, though the entire state experiences cold winters and humid summers. Straddling two major zones,
1530-810: The Edgar Thomson Works in Braddock , the first steel works in the area, the Duquesne Works and the Jones and Laughlin steel works on the South Side of Pittsburgh. Only the Edgar Thomson works remain producing steel along the river. Despite the closure of many of the mills in the 1980s and 90s, the Monogahela is still an important waterway for industry. The Mon Valley Works of U.S. Steel operates three plants, including
1615-550: The French and their Native American allies. In 1817, the Pennsylvania legislature authorized the Monongahela Navigation Company to build 16 dams with bypass locks to create a river transportation system between Pittsburgh and the area that would later become West Virginia . Originally planned to run as far south as the Cheat River , the system was extended to Fairmont, and bituminous coal from West Virginia
1700-837: The Hurons and Iroquois blocked them from proceeding west into Ohio during the Beaver Wars . As they lost numbers and land, the Hurons abandoned much of their western territory and moved closer to the Susquehanna River, and the Iroquois and Mohawk tribes moved further north. Northwest of the Allegheny River was the Iroquoian Petun , who were fragmented into three groups during the Beaver Wars:
1785-848: The Northeast megalopolis and is associated with the Northeastern United States . Pittsburgh is part of the Great Lakes megalopolis and is often associated with the Rust Belt . During the September 11, 2001, terrorist attacks on the United States , the small town of Shanksville, Pennsylvania , received worldwide attention after United Airlines Flight 93 crashed into a field in Stonycreek Township , located 1.75 miles (2.82 km) north of
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#17330860347701870-609: The Saint Lawrence River watershed. One (or more) extensive ice sheet advance dammed the old north-flowing drainage and created a vast lake—known as Lake Monongahela —stretching from an unknown point north of present-day Beaver, Pennsylvania for ~200 miles (320 km) south to Weston, West Virginia . A river-lake with many narrow bays, its maximum water surface rose to 1,100 feet (340 m) above sea level. Over 200 feet (61 m) deep in places, its southwestward overflow gradually incised old drainage divides and contributed to
1955-506: The Secretary of War under President Abraham Lincoln . Control of the machine was subsequently passed on to Cameron's son J. Donald Cameron , whose ineffectiveness resulted in a transfer of power to the more shrewd Matthew Quay and finally to Boies Penrose . The post-Civil War era, known as the Gilded Age , saw the continued rise of industry in Pennsylvania. Pennsylvania was home to some of
2040-765: The Spanish–American War . Pennsylvania was an important industrial center in World War I , and the state provided over 300,000 soldiers for the military. On May 31, 1918, the Pittsburgh Agreement was signed in Pittsburgh to declare the formation of the independent state of Czechoslovakia with future Czechoslovak president Tomáš Masaryk . In 1922, 310,000 Pennsylvania miners joined the UMW General coal strike , which lasted 163 days and shut down most coal mines within
2125-702: The United States . Pennsylvania has 51 miles (82 km) of coastline along Lake Erie and 57 miles (92 km) of shoreline along the Delaware Estuary . Of the original Thirteen Colonies , Pennsylvania is the only state that does not border the Atlantic Ocean . The boundaries of the state are the Mason–Dixon line (39°43' N) to the south, Twelve-Mile Circle on the Pennsylvania- Delaware border,
2210-512: The United States . It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio and the Ohio River to its west, Lake Erie and New York to its north, the Delaware River and New Jersey to its east, and the Canadian province of Ontario to its northwest via Lake Erie . Pennsylvania was founded in 1681 through a royal land grant to William Penn ,
2295-594: The University of Pennsylvania in Philadelphia . The university, one of nine colonial colleges , was the first college established in Pennsylvania and one of the first in the nation. Today, it is an Ivy League university, which is routinely ranked among the world's best universities. Dickinson College in Carlisle , founded by Benjamin Rush and named after John Dickinson, was the first college founded after Revolutionary War and
2380-603: The county commission and freedom of religion , which were subsequently replicated in many of the Thirteen Colonies . What had been Upland on the Pennsylvania side of the Pennsylvania-Delaware border was renamed Chester County when Pennsylvania instituted its colonial governments on March 4, 1681. Penn signed a peace treaty with Tamanend , leader of the Lenape, which began a long period of friendly relations between
2465-502: The seventh-largest metropolitan area in the country and one of the largest metropolitan areas in the world, and Pittsburgh is the center of the nation's 27th-largest metropolitan areas. As of 2020, the Lehigh Valley in eastern Pennsylvania is the nation's 69th-largest metropolitan area. Pennsylvania also has six additional metropolitan areas that rank among the nation's 200-most populous metropolitan areas. Philadelphia forms part of
2550-673: The 15th U.S. president and was the first president to be born in Pennsylvania. The Battle of Gettysburg , the major turning point of the American Civil War , took place near Gettysburg in July 1863. An estimated 350,000 Pennsylvanians served in the Union Army forces, including 8,600 African American military volunteers . The politics of Pennsylvania were for decades dominated by the financially conservative Republican -aligned Cameron machine , established by U.S. Senator Simon Cameron , later
2635-417: The 45th President of the United States Donald Trump occurred. Pennsylvania is 170 miles (274 km) north to south and 283 miles (455 km) east to west. Of a total 46,055 square miles (119,282 km ), 44,817 square miles (116,075 km ) are land, 490 square miles (1,269 km ) are inland waters, and 749 square miles (1,940 km ) are waters in Lake Erie . It is the 33rd-largest state in
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2720-428: The 48 states. The Philadelphia Naval Shipyard served as an important naval base, and Pennsylvania produced important military leaders, including George C. Marshall , Hap Arnold , Jacob Devers , and Carl Spaatz . During the war, over a million Pennsylvanians served in the armed forces, and more Medals of Honor were awarded to Pennsylvanians than to individuals from any other state. The Three Mile Island accident
2805-408: The Americas began, at least two major Native American tribes inhabited Pennsylvania. The first, the Lenape , spoke an Algonquian language and inhabited the eastern region of the state, then known as Lenapehoking . It included most of present-day New Jersey and the Lehigh Valley and Delaware Valley regions in eastern and southeastern Pennsylvania. The Lenape's territory ended somewhere between
2890-543: The Dutch began settling the Delmarva Peninsula by establishing the Zwaanendael Colony on the site of present-day Lewes, Delaware . In 1638, Sweden established the New Sweden Colony in the region of Fort Christina on the site of present-day Wilmington, Delaware . New Sweden claimed and, for the most part, controlled the lower Delaware River region, including parts of present-day Delaware, New Jersey, and Pennsylvania, but settled few colonists there. On March 12, 1664, King Charles II of England gave James, Duke of York
2975-447: The Edgar Thomson plant for basic steel marking, the Irvin plant for steel finishing, and the Clairton plant for coke production. Coal barges are a common sight on the river, and the railways which line either side are heavily used by freight. Other industries include power generation, chemicals, and recycling. Three ships in the United States Navy have been named Monongahela after the river. In October 1930, severe drought caused
3060-427: The General Assembly refused to occupy the building. In 1901, political and popular indignation prompted a second contest that was restricted to Pennsylvania architects; Joseph Miller Huston of Philadelphia was chosen to design the present Pennsylvania State Capitol that incorporated Cobb's building into a magnificent public work, finished and dedicated in 1907. James Buchanan , a Franklin County native, served as
3145-409: The Netherlands confirmed the English conquest on July 21, 1667, although there were temporary reversions. On September 12, 1672, during the Third Anglo-Dutch War , the Dutch reconquered New York Colony / New Amsterdam , establishing three County Courts, which went on to become original Counties in present-day Delaware and Pennsylvania. The one that later transferred to Pennsylvania was Upland. This
3230-642: The Ohio River. It falls 280 feet from its forks to its mouth, a stretch made navigable by locks. The mean depth is about 20 ft. In southwestern Pennsylvania, the Monongahela is met by two major tributaries : the Cheat River , which joins at Point Marion , and the Youghiogheny River , which joins at McKeesport . Major tributaries include: Becks Run , Big Sandy Creek , Buffalo Creek , Cheat River , Crooked Run , Deckers Creek , Dunkard Creek , Lick Run , Middle Fork River , Paw Paw Creek , Peters Creek , Streets Run , Turtle Creek , Tygart Valley River , West Fork River , Youghiogheny River . The river
3315-439: The Petun of New York, the Wyandot of Ohio, and the Tiontatecaga of the Kanawha River in southern West Virginia. South of the Allegheny River was a nation known as Calicua, which may have been part of the Monongahela culture . In the 17th century, the Dutch and the English each claimed both sides of the Delaware River as part of their colonial lands in America. The Dutch were the first to take possession. By June 3, 1631,
3400-563: The Quakers and the Indians. Additional treaties between Quakers and other tribes followed. The Treaty of Shackamaxon of William Penn was never violated. Between 1730 and when the Pennsylvania Colony was shut down by Parliament with the Currency Act in 1764, the Pennsylvania Colony made its own paper money to account for the shortage of actual gold and silver. The paper money was called Colonial Scrip . The Colony issued bills of credit, which were as good as gold or silver coins because of their legal tender status. Since they were issued by
3485-523: The U.S. Army Corps of Engineers. Work will commence in 2024. Afterwards 30 miles of the river between Charleroi and Braddock will be free flowing. According to the EPA's Toxics Release Inventory for 2010, the Monongahela ranked as the 17th most polluted river in the nation. The primary polluters were Pennsylvania iron and steel mills. The upper drainage area of the river basin is renowned for its water sports/hobbies of whitewater kayaking (and in some cases whitewater rafting ) opportunities. The land here
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3570-424: The bank of a river or creek, or in a landslide) and mënaonke (pronounced [mənaoŋɡe] ), "it has a loose bank" (where one might fall in). Monongalia County and the town of Monongah , both in West Virginia, are named for the river, as is the city of Monongahela in Pennsylvania. (The name "Monongalia" is either a Latinized adaptation of "Monongahela" or simply a variant spelling.) The USGS name for
3655-410: The bomber has not been found. Pennsylvania Pennsylvania ( / ˌ p ɛ n s ɪ l ˈ v eɪ n i ə / PEN -sil- VAY -nee-ə , lit. ' Penn's forest country ' ), officially the Commonwealth of Pennsylvania ( Pennsylvania Dutch : Pennsilfaani ), is a U.S. state spanning the Mid-Atlantic , Northeastern , Appalachian , and Great Lakes regions of
3740-429: The city's population as of 2000. In the 20th century, as Pennsylvania's historical national and even global leadership in mining largely ceased and its steelmaking and other heavy manufacturing sectors slowed, the state sought to grow its service and other industries to replace the jobs and economic productivity lost from the downturn of these industries. Pittsburgh's concentration of universities has enabled it to be
3825-489: The confluence of its west and east forks in north-central West Virginia northeasterly into southwestern Pennsylvania, then northerly to Pittsburgh and its confluence with the Allegheny River to form the Ohio River . The river includes a series of locks and dams that makes it navigable. The Unami word Monongahela means "falling banks", in reference to the geological instability of the river's banks. Moravian missionary David Zeisberger (1721–1808) gave this account of
3910-420: The dam-lock combinations were increased in size and reduced in number. Briefly linked to the Monongahela Navigation was the Youghiogheny Navigation, a slack water system of 18.5 miles (29.8 km) between McKeesport and West Newton . It had two dam-locks overcoming a change in elevation of about 27 feet (8.2 m). Opening in 1850, it was destroyed by a flood in 1865. During the 19th century and well into
3995-420: The development of labor unions helped them gain living wages. However, the rise of unions also led to a rise of union busting with several private police forces springing up. Pennsylvania was the location of the first documented organized strike in North America, and Pennsylvania was the location of two hugely prominent strikes, the Great Railroad Strike of 1877 and the Coal Strike of 1902 . The eight-hour day
4080-432: The earliest known signs of human activity in Pennsylvania and perhaps all of North America, including the remains of a civilization that existed over 10,000 years ago and possibly pre-dated the Clovis culture . By 1000 CE, in contrast to their nomadic hunter-gatherer ancestors , the native population of Pennsylvania had developed agricultural techniques and a mixed food economy. By the time European colonization of
4165-417: The fifth and currently the sixth-largest city after decades of being among the top three. After 1990, as information-based industries became more important in the economy, state and local governments put more resources into the old, well-established public library system. Some localities, however, used new state funding to cut local taxes. New ethnic groups, especially Hispanics and Latinos , began entering
4250-463: The first. At the time, Pennsylvania was the most ethnically and religiously diverse of the thirteen colonies. Because a third of Pennsylvania's population spoke German , the Constitution was presented in German so those citizens could participate in the discussion about it. Reverend Frederick Muhlenberg , a Lutheran minister and the first Speaker of the U.S. House of Representatives , acted as chairman of Pennsylvania's ratifying convention. For half
4335-448: The foundation of the colonial Province of Pennsylvania in 1681. Archaeologists believe the first settlement of the Americas occurred at least 15,000 years ago, during the Last Glacial Period , though it is unclear when humans first inhabited present-day Pennsylvania. Between 10,000 and 16,000 years ago, Native Americans crossed the two continents, arriving in North America . Meadowcroft Rockshelter in Jefferson Township includes
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#17330860347704420-424: The geological development of the present-day upper Ohio River Valley . Via the Ohio River, the river is part of the Mississippi watershed which drains to the Gulf of Mexico on the Atlantic Ocean. The river's length is 130 miles, its drainage basin is 7,340 sq.mi. and the average 30-year discharge at Elizabeth, Pennsylvania, is 9,109 cfs. It falls 3,831 ft. in elevation from its highest source to its mouth on
4505-515: The government and not a banking institution, they were interest-free, largely defraying the expense of the government and therefore taxation of the people. It also promoted general employment and prosperity, since the government used discretion and did not issue excessive amounts that inflated the currency. Benjamin Franklin had a hand in creating this currency, whose utility, he said, was never to be disputed. The currency also met with "cautious approval" by Adam Smith . In 1740, Franklin also founded
4590-433: The land be called New Wales, but there were objections to that name, so he recommended Sylvania (from the Latin silva : "forest, woods"). The King named it Pennsylvania (literally "Penn's Woods") in honor of Admiral Penn. The younger Penn was embarrassed at this name, fearing that people would think he had named it after himself, but King Charles would not rename the grant. Penn established a government with two innovations,
4675-567: The largest chocolate manufacturer in North America. Heinz Company was also founded during this period. These huge companies exercised a large influence on the politics of Pennsylvania; as Henry Demarest Lloyd put it, oil baron John D. Rockefeller "had done everything with the Pennsylvania legislature except refine it". Pennsylvania created a Department of Highways and engaged in a vast program of road-building, while railroads continued to see heavy usage. The growth of industry eventually provided middle class incomes to working-class households after
4760-399: The largest steel companies in the world. Andrew Carnegie founded the Carnegie Steel Company in Pittsburgh and Charles M. Schwab founded Bethlehem Steel in Bethlehem . Other titans of industry, including John D. Rockefeller and Jay Gould , also operated in Pennsylvania. In the latter half of the 19th century, the U.S. oil industry was born in Western Pennsylvania , which supplied
4845-417: The majority of the state, except for the southeastern corner, has a humid continental climate ( Köppen climate classification Dfb ). The southern portion of the state has a humid subtropical climate. The largest city, Philadelphia , has a humid subtropical climate (Köppen Cfa ). Summers are generally hot and humid. Moving toward the mountainous interior of the state, the winter climate becomes colder,
4930-415: The naming: "In the Indian tongue the name of this river was Mechmenawungihilla (alternatively spelled Menawngihella ), which signifies a high bank, which is ever washed out and therefore collapses." The Lenape Language Project renders the word as Mënaonkihëla (pronounced [mənaoŋɡihəla] ), translated "where banks cave in or erode", from the verbs mënaonkihële "the dirt caves off" (such as
5015-442: The north-central region with York , Carlisle , and the state capital Harrisburg on the Susquehanna River in the east-central region of the state. Altoona and Johnstown are in the state's west-central region. The state's three-most populated cities, in order of size, are Philadelphia, Pittsburgh, and Allentown. As of the 2020 U.S. census , Pennsylvania had a population of 13,011,844, up from 12,702,379 in 2010. Pennsylvania
5100-627: The number of cloudy days increases, and snowfall amounts are greater. Western areas of the state, particularly locations near Lake Erie , can receive over 100 inches (250 cm) of snowfall annually, and the entire state receives plentiful precipitation throughout the year. The state may be subject to severe weather from spring through summer into autumn. Tornadoes occur annually in the state, sometimes in large numbers, such as 30 recorded tornadoes in 2011; generally speaking, these tornadoes do not cause significant damage. Cities in Pennsylvania include Philadelphia , Reading , Lebanon , and Lancaster in
5185-473: The old Dauphin County Court House until December 1821 when the Federal -style Hills Capitol, named for Lancaster architect Stephen Hills , was constructed on a hilltop land grant of four acres set aside for a seat of state government in Harrisburg by the son and namesake of John Harris, Sr. , a Yorkshire native who founded a trading post and ferry on the east shore of the Susquehanna River in 1705. The Hills Capitol burned down on February 2, 1897, during
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#17330860347705270-429: The remainder from Africa (5%), North America (3.1%), and Oceania (0.4%). The state's largest ancestry groups, expressed as a percentage of total people who responded with a particular ancestry for the 2010 census, were German 28.5%, Irish 18.2%, Italian 12.8%, African Americans 9.6%, English 8.5%, Polish 7.2%, and French 4.2%. As of 2018, the top countries of origin for Pennsylvania's immigrants were India ,
5355-428: The river flow to drop below 10 cu ft/s (280 L/s), and in some places, it was possible to walk across the river bottom. The river was the site of a famous airplane crash that has become the subject of urban legends and conspiracy theories . Early on the morning of January 31, 1956, a B-25 bomber en route from Nellis Air Force Base in Nevada to Olmsted Air Force Base in Pennsylvania crashed into
5440-499: The river is the Monongahela River; there have been numerous alternative names, alternative spellings and misspellings in historical texts. The Monongahela is formed by the confluence of the West Fork River and its "east fork"—the Tygart Valley River —at Fairmont in north central West Virginia. From there it flows northeasterly to cross the Pennsylvania border just west of north Cheat Lake on its Cheat River tributary. Then it flows northerly across southwestern Pennsylvania, taking
5525-411: The river near the Glenwood Bridge in Homestead, Pennsylvania . The six crewmen survived the initial crash, but two of them succumbed in the cold water and drowned. Despite the relatively shallow water, the aircraft was never recovered and became known as the "ghost bomber". The Pittsburgh Post-Gazette published a graphical representation of the flight path and flight details in 1999. As of 2018,
5610-416: The son of the state's namesake . Prior to that, between 1638 and 1655, a southeast portion of the state was part of New Sweden , a Swedish Empire colony. Established as a haven for religious and political tolerance, the colonial-era Province of Pennsylvania was known for its relatively peaceful relations with native tribes, innovative government system , and religious pluralism . Pennsylvania played
5695-404: The southeast, Pittsburgh in the southwest, and the tri-cities of Allentown , Bethlehem , and Easton in the central east, known as the Lehigh Valley . The northeast includes the former anthracite coal mining cities of Scranton , Wilkes-Barre , Pittston , Nanticoke , and Hazleton . Erie is located in the northwest. State College is located in the central region. Williamsport is in
5780-439: The state is forested . While it has no ocean shoreline, it has 140 miles (225 km) of waterfront along Lake Erie and the tidal Delaware River. Pennsylvania is the fifth-most populous state in the United States , with over 13 million residents as of the 2020 United States census . The state is the 33rd-largest by area and has the ninth-highest population density among all states. The largest metropolitan statistical area
5865-464: The state to fill low-skill jobs in agriculture and service industries. For example, in Chester County , Mexican immigrants brought the Spanish language , increased Catholicism , high birth rates, and cuisine when they were hired as agricultural laborers; in some rural localities, they made up half or more of the population. Stateside Puerto Ricans built a large community in the state's third-largest city, Allentown , where they comprise over 40% of
5950-468: The state's manufacturing-based economy contributed to the development of much of the nation's early infrastructure, including key bridges, skyscrapers , and military hardware used in U.S.-led victories in World War I , World War II , and the Cold War . Pennsylvania's geography is highly diverse. The Appalachian Mountains run through the center of the state; the Allegheny and Pocono mountains span much of Northeastern Pennsylvania ; close to 60% of
6035-525: The state. In 1923, President Calvin Coolidge established the Allegheny National Forest under the authority of the Weeks Act of 1911. The forest is located in the northwest part of the state in Elk , Forest , McKean , and Warren Counties for the purposes of timber production and watershed protection in the Allegheny River basin. The Allegheny is the state's only national forest. Pennsylvania manufactured 6.6 percent of total U.S. military armaments produced during World War II , ranking sixth among
6120-519: The state." The ensuing hostilities became known as Pontiac's War . After the Stamp Act Congress of 1765, delegate John Dickinson of Philadelphia wrote the Declaration of Rights and Grievances . The Congress was the first meeting of the Thirteen Colonies , which convened at the request of the Massachusetts assembly; nine of the 13 colonies sent delegates. Dickinson then wrote Letters from
6205-532: The town. All 40 civilians and 4 Al-Qaeda hijackers on board were killed. The hijackers had intended to crash the plane into either the United States Capitol or The White House . After learning from family members via air phone of the earlier attacks on the World Trade Center , however, Flight 93's passengers revolted against the hijackers and fought for control of the plane, causing it to crash. It
6290-595: The twentieth, the Monongahela was heavily used by industry , and several U.S. Steel plants, including the Homestead Works, site of the Homestead Strike of 1892, were built along its banks. Following the killing of several workers in the course of the strike, anarchist Emma Goldman wrote: "Words had lost their meaning in the face of the innocent blood spilled on the banks of the Monongahela." Other mills included
6375-524: The unification of the states. Established in 1773, it was ratified on September 9, 1783, five days after the Treaty of Paris . James Smith wrote that in 1763, "the Indians again commenced hostilities, and were busily engaged in killing and scalping the frontier inhabitants in various parts of Pennsylvania. This state was then a Quaker government, and at the first of this war the frontiers received no assistance from
6460-565: The vast majority of kerosene for years thereafter. As the Pennsylvania oil rush developed, Pennsylvania's oil boom towns, such as Titusville , rose and later fell. Coal mining, primarily in the state's Coal Region in the northeast region of the state, also was a major industry for much of the 19th and 20th centuries. In 1903, Milton S. Hershey began construction on a chocolate factory in Hershey, Pennsylvania ; The Hershey Company grew to become
6545-550: Was eventually adopted, and the coal and iron police were banned. At the beginning of the 20th century, Pennsylvania's economy centered on steel production, logging , coal mining , textile production, and other forms of industrial manufacturing . A surge in immigration to the U.S. during the late 19th and early 20th centuries provided a steady flow of cheap labor for these industries, which often employed children and people who could not speak English from Southern and Eastern Europe . Thousands of Pennsylvanians volunteered during
6630-737: Was not yet in British possession, but the sale boxed in the portion of New Netherland on the West side of the Delaware River. The British conquest of New Netherland began on August 29, 1664, when New Amsterdam was coerced to surrender while facing cannons on British ships in New York Harbor . The conquest was completed in October 1664, when the British captured Fort Casimir in what today is New Castle, Delaware . The Treaty of Breda between England, France, and
6715-527: Was once again chosen to be cradle to the new nation. The Constitution was drafted and signed at the Pennsylvania State House in Philadelphia, now known as Independence Hall , the same building where the Declaration of Independence was previously adopted and signed in 1776. On December 12, 1787, Pennsylvania was the second state to ratify the U.S. Constitution , five days after Delaware became
6800-540: Was partially reversed on February 9, 1674, when the Treaty of Westminster ended the Third Anglo-Dutch War and reverted all political situations to the status quo ante bellum . The British retained the Dutch Counties with their Dutch names. By June 11, 1674, New York reasserted control over the outlying colonies, including Upland, and the names started to be changed to British names by November 11, 1674. Upland
6885-439: Was partitioned on November 12, 1674, producing the general outline of the current border between Pennsylvania and Delaware. On February 28, 1681, Charles II granted a land charter to Quaker leader William Penn to repay a debt of £16,000 (around £2,100,000 in 2008, adjusting for retail inflation) owed to William's father. The transaction represents one of the largest land grants to an individual in history. Penn proposed that
6970-719: Was the chief product transported downstream. After a canal tunnel through Grant's Hill in Pittsburgh was completed in 1832, boats could travel between the Monongahela River and the Western Division Canal of Pennsylvania's principal east–west canal and railroad system, the Main Line of Public Works . In 1897, the federal government took possession of the Monongahela Navigation through condemnation proceedings. Later,
7055-441: Was the most significant nuclear accident in U.S. commercial nuclear power plant history. The state was hard-hit by the decline and restructuring of the steel industry and other heavy industries during the late 20th century. With job losses came heavy population losses, especially in the state's largest cities. Pittsburgh lost its place among the top ten most populous cities in the United States by 1950, and Philadelphia dropped to
7140-590: Was the only one of the four aircraft hijacked that day that never reached its intended target and the heroism of the passengers has been commemorated. Since 2003, the Tekko anime convention has been held annually in Pittsburgh. In October 2018, the Tree of Life – Or L'Simcha Congregation , a conservative Jewish synagogue, experienced the Pittsburgh synagogue shooting , which resulted in 11 fatalities. On July 13, 2024, near Butler, Pennsylvania , an assassination attempt on
7225-564: Was the second state to ratify the U.S. Constitution . In July 1863, the Battle of Gettysburg , fought over three days in and around Gettysburg , was the bloodiest and most decisive battle of the American Civil War , claiming over 50,000 Union and Confederate fatalities and repelling Robert E. Lee 's invasion of the North, leading to the Union's preservation . Throughout the late 19th and 20th centuries,
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