The Tripoli Rocketry Association ( TRA ) is an international organization and one of the two major organizing bodies for high power rocketry in the United States.
84-517: Tripoli Rocketry Association was founded in 1964 in the Pittsburgh, Pennsylvania , region as a high school science club, integrating both rocketry and space science. The name "Tripoli" was chosen because the founding members came from three different towns, and one of them helped fund the club's early projects using gold coins that his father had brought back from Tripoli (whose name approximately means "three towns") Lebanon after World War II . By
168-535: A C grade, and improving from the 46th to 54th most polluted by ozone smog. According to daily ozone air quality data provided by the EPA, from 2021 to 2024, Pittsburgh had good or moderate air quality most of the time. Then-Allegheny County executive Rich Fitzgerald said in December 2023 that they’d seen an "80 % drop in hazardous air pollutants" and that they made EPA attainment at all eight county air monitors for
252-576: A co-plaintiff) against the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) as the defendant, regarding its claims of jurisdiction over and legal classifications regarding permitting, storage, and use of ammonium perchlorate composite propellant (APCP) in rocket motors. On March 16, 2009, the United States district court for the District of Columbia found in favor of TRA/NAR, and ordered
336-489: A decrease in city population, even as the metropolitan area population increased again. During the late 2000s recession , Pittsburgh was economically strong, adding jobs when most cities were losing them. It was one of the few cities in the United States to see housing property values rise. Between 2006 and 2011, the Pittsburgh metropolitan statistical area (MSA) experienced over 10% appreciation in housing prices,
420-594: A few of West Virginia's eastern panhandle counties are considered part of the Washington metropolitan area , the major portion of the state is rural and there are no major or even large cities. Shipping and trade have been important to the Mid-Atlantic economy since the beginning of the colonial era. The explorer Giovanni da Verrazzano was the first European to see the region in 1524. Henry Hudson later extensively explored that region in 1611 and claimed it for
504-613: A free state after the Revolution, enslaved African Americans sought freedom here through escape as refugees from the South, or occasionally fleeing from travelers they were serving who stayed in the city. There were active stations of the Underground Railroad in the city, and numerous refugees were documented as getting help from station agents and African-American workers in city hotels. The Drennen Slave Girl walked out of
588-685: A growing residential segment. Most significantly, the Pittsburgh Cultural Trust is embarking on RiverParc, a four-block mixed-use "green" community, featuring 700 residential units and multiple towers of between 20 and 30 stories. The Firstside portion of Downtown borders the Monongahela River, the historic Mon Wharf and hosts the distinctive PPG Place Gothic-style glass skyscraper complex. New condo towers have been constructed and historic office towers are converted to residential use, increasing 24-hour residents. Downtown
672-539: A quarter of neighborhood names make reference to "hills," "heights," or similar features. The steps of Pittsburgh consist of 800 sets of outdoor public stairways with 44,645 treads and 24,090 vertical feet. They include hundreds of streets composed entirely of stairs, and many other steep streets with stairs for sidewalks. Many provide vistas of the Pittsburgh area while attracting hikers and fitness walkers. Bike and walking trails have been built to border many of
756-688: A sub-region of the Northeast and only includes New Jersey, New York, and Pennsylvania. The Bureau of Labor Statistics excludes New York; the Environmental Protection Agency excludes New York and New Jersey; and the U.S. Department of Transportation - United States Maritime Administration includes North Carolina . In 2004, the United States Geological Survey within the context of Ground-Water Vulnerability to Nitrate Contamination, defined
840-521: A time, New Sweden along the Delaware River in Delaware , divided the two great bulwarks of English settlement from each other. The original English settlements in the region notably provided refuge to religious minorities, Maryland to Roman Catholics and Pennsylvania to Quakers and Anabaptist Pennsylvania Dutch . In time, all these settlements fell under English colonial control, but
924-578: Is 39.61 inches (1,006 mm) and precipitation is greatest in May while least in October; annual precipitation has historically ranged from 22.65 in (575 mm) in 1930 to 57.83 in (1,469 mm) in 2018. On average, December and January have the greatest number of precipitation days. Snowfall averages 44.1 inches (112 cm) per season, but has historically ranged from 8.8 in (22 cm) in 1918–19 to 80 in (200 cm) in 1950–51. There
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#17327732680251008-550: Is also home to the nation's capital, Washington, D.C. The Mid-Atlantic is home to 33 professional sports franchises in the five major leagues and the two most prominent women's professional leagues: Notable golf tournaments in the Mid-Atlantic include the Barclays , Quicken Loans National and Atlantic City LPGA Classic . Two high-level professional tennis tournaments are held in the region. The US Open , held in New York,
1092-486: Is an average of 59 clear days and 103 partly cloudy days per year, while 203 days are cloudy. In terms of annual percent-average possible sunshine received, Pittsburgh (45%) is similar to Seattle (49%). The American Lung Association's (ALA) 2023 "State of the Air" report (which included data from 2019 to 2021) showed air quality in Pittsburgh improving. The city received a passing grade for ozone pollution, going from an F to
1176-471: Is home to the University of Pittsburgh , Carnegie Mellon University , Carlow University , Chatham University , The Carnegie Institute's Museums of Art and Natural History , Phipps Conservatory , and Soldiers and Sailors Memorial Hall . It is also home to many parks and public spaces including Mellon Park , Westinghouse Park , Schenley Park , Frick Park , The Frick Pittsburgh , Bakery Square , and
1260-574: Is now known as Washington's Landing, formerly Herr's Island , in what is now the Lawrenceville neighborhood. The first known European to enter the region was the French explorer Robert de La Salle from Quebec during his 1669 expedition down the Ohio River . European pioneers, primarily Dutch, followed in the early 18th century. Michael Bezallion was the first to describe the forks of
1344-693: Is one of the four Grand Slam tennis tournaments, whereas the Washington Open is part of the ATP Tour 500 series and WTA 250 series. Notable motorsports tracks include Watkins Glen International , Dover Motor Speedway and Pocono Raceway , which have hosted Formula One , IndyCar , NASCAR , World Sportscar Championship and IMSA races. Also, the Englishtown and Reading drag strips such have hosted NHRA national events. Pimlico Race Course at Baltimore and Belmont Park at New York host
1428-679: Is primarily composed of residential neighborhoods and is noteworthy for its well-constructed and architecturally interesting homes. Many buildings date from the 19th century and are constructed of brick or stone and adorned with decorative woodwork, ceramic tile, slate roofs and stained glass. The North Side is also home to attractions such as Acrisure Stadium , PNC Park , Kamin Science Center , National Aviary , Andy Warhol Museum , Mattress Factory art museum, Children's Museum of Pittsburgh , Randyland , Penn Brewery , Allegheny Observatory , and Allegheny General Hospital . The South Side
1512-573: Is referred to as "the Point." The city extends east to include the Oakland and Shadyside sections, which are home to the University of Pittsburgh , Carnegie Mellon University , Chatham University , Carnegie Museum and Library , and many other educational, medical, and cultural institutions. The southern, western, and northern areas of the city are primarily residential. Many Pittsburgh neighborhoods are steeply sloped with two-lane roads. More than
1596-513: Is served by the Port Authority 's light rail system and multiple bridges leading north and south. It is also home to Point Park University and Duquesne University which borders Uptown . The North Side is home to various neighborhoods in transition. The area was once known as Allegheny City and operated as its own independent city until 1907, when it was merged with Pittsburgh despite great protest from its citizens. The North Side
1680-754: Is water. The 80th meridian west passes directly through the city's downtown. The city is on the Allegheny Plateau , within the ecoregion of the Western Allegheny Plateau . The Downtown area (also known as the Golden Triangle) sits where the Allegheny River flows from the northeast and the Monongahela River from the southeast to form the Ohio River . The convergence is at Point State Park and
1764-539: The 2020 census . The city is located in southwestern Pennsylvania at the confluence of the Allegheny River and the Monongahela River , which combine to form the Ohio River . It anchors the Pittsburgh metropolitan area , which had a population of 2.457 million residents and is the largest metro area in both the Ohio Valley and Appalachia , the second-largest in Pennsylvania , and the 26th-largest in
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#17327732680251848-582: The Allegheny Mountains . The Great Fire of Pittsburgh destroyed over a thousand buildings in 1845. The city rebuilt with the aid of Irish immigrants who came to escape the Great Famine . By 1857, Pittsburgh's 1,000 factories were consuming 22 million coal bushels yearly. Coal mining and iron manufacturing attracted waves of European immigrants to the area, with the most coming from Germany . Because Pennsylvania had been established as
1932-899: The Continental Congress , the convention of delegates who organized the American Revolution . Philadelphia also was the birthplace of the Declaration of Independence in 1776 and the United States Constitution in 1787, while the United States Bill of Rights was drafted and ratified and the first Supreme Court of the United States sat for the first time, in the first capital under the Constitution of New York . While early settlers were mostly farmers, traders, and fishermen,
2016-786: The Edgar Thomson Steel Works in North Braddock, Pennsylvania , which evolved into the Carnegie Steel Company . He adopted the Bessemer process to increase production. Manufacturing was key to growth of Pittsburgh and the surrounding region. Railroad lines were built into the city along both rivers, increasing transportation access to important markets. In 1901, J. P. Morgan and attorney Elbert H. Gary merged Carnegie Steel Company and several other companies into U.S. Steel . By 1910, Pittsburgh
2100-534: The French and British Empires, Virginians , Whiskey Rebels , and Civil War raiders . For part of the 20th century, Pittsburgh was behind only New York City and Chicago in corporate headquarters employment; it had the most U.S. stockholders per capita. Deindustrialization in the late 20th century resulted in massive layoffs among blue-collar workers as steel and other heavy industries declined, coinciding with several Pittsburgh-based corporations moving out of
2184-688: The Iroquois Confederacy , based in New York, had maintained control of much of the Ohio Valley as hunting grounds by right of conquest after defeating other tribes. By the terms of the 1768 Treaty of Fort Stanwix , the Penns were allowed to purchase the modern region from the Iroquois . A 1769 survey referenced the future city as the "Manor of Pittsburgh". Both the Colony of Virginia and
2268-487: The Köppen climate classification , Pittsburgh falls within either a hot-summer humid continental climate ( Dfa ) if the 0 °C (32 °F) isotherm is used or a humid subtropical climate ( Cfa ) if the −3 °C (27 °F) isotherm is used. Summers are hot and winters are moderately cold with wide variations in temperature. Despite this, it has one of the most pleasant summer climates between medium and large cities in
2352-746: The Pittsburgh Post-Gazette was started, and in 1787, the Pittsburgh Academy was chartered. Unrest during the Whiskey Rebellion of 1794 resulted in federal troops being sent to the area. By 1797, glass manufacture began, while the population grew to around 1,400. Settlers arrived after crossing the Appalachian Mountains or through the Great Lakes . Fort Pitt (now Pittsburgh) at the source of
2436-561: The Pittsburgh Steelers , Pittsburgh Penguins , and Pittsburgh Pirates . Pittsburgh is additionally where Jehovah's Witnesses traces its earliest origins, and was the host of the 2009 G20 Pittsburgh summit . Pittsburgh was named in 1758, by General John Forbes , in honor of British statesman William Pitt, 1st Earl of Chatham . As Forbes was a Scotsman , he probably pronounced the name / ˈ p ɪ t s b ər ə / PITS -bər-ə (similar to Edinburgh ). Pittsburgh
2520-468: The Pittsburgh Zoo and PPG Aquarium. The neighborhoods of Shadyside and Squirrel Hill are large, wealthy neighborhoods with some apartments and condos, and pedestrian-oriented shopping/business districts. Squirrel Hill is also known as the hub of Jewish life in Pittsburgh, home to approximately 20 synagogues. Oakland , heavily populated by undergraduate and graduate students, is home to most of
2604-674: The Preakness Stakes and Belmont Stakes horse races, which are part of the Triple Crown of Thoroughbred Racing . With a GDP nominal of over $ 5.2 trillion, the Mid-Atlantic economy would be third-largest in the world if calculated separately, only behind the remaining United States and China and nearly $ 1 trillion larger than next place Japan. This economic prosperity is buoyed by a significant financial services and banking sector, healthcare and chemicals industry, and telecommunications and entertainment conglomerates. According to
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2688-523: The Province of Pennsylvania claimed the region under their colonial charters until 1780, when they agreed under a federal initiative to extend the Mason–Dixon line westward, placing Pittsburgh in Pennsylvania. On March 8, 1771, Bedford County, Pennsylvania was created to govern the frontier. On April 16, 1771, the city's first civilian local government was created as Pitt Township . William Teagarden
2772-611: The U.S. Bureau of Labor Statistics (BLS), the states listed above are commonly accepted as the Mid-Atlantic region. The region has its origin in the Middle Colonies of the 18th century when its states were among the Thirteen Colonies of pre- revolutionary British America . As of the 2020 census , the region had a population of 60,783,913, representing slightly over 18% of the nation's population. The Mid-Atlantic region played an instrumental and historic role in
2856-625: The University of Pennsylvania in Philadelphia ; Carnegie Mellon University in Pittsburgh ; Johns Hopkins University in Baltimore , Georgetown University in Washington, D.C. ; and the University of Virginia in Charlottesville, Virginia according to U.S. News & World Report Best Colleges Ranking . Definitions of the geographic components of the Mid-Atlantic region differ slightly among sources. Generally speaking,
2940-460: The University of Pittsburgh . The area has served as the federal agency headquarters for cyber defense , software engineering , robotics , energy research , and the nuclear navy . In the private sector, Pittsburgh-based PNC is the nation's fifth-largest bank, and the city is home to ten Fortune 500 companies and seven of the largest 300 U.S. law firms. Other corporations that have regional headquarters and offices have helped Pittsburgh become
3024-587: The 1850 Fugitive Slave Act , as it required cooperation from law enforcement even in free states and increased penalties. From 1850 to 1860, the black population in Allegheny County dropped from 3,431 to 2,725 as people headed to more safety in Canada. The American Civil War boosted the city's economy with increased iron and armament demand by the Union. Andrew Carnegie began steel production in 1875 at
3108-511: The ATF to vacate APCP from its list of regulated explosives. Pittsburgh Pittsburgh ( / ˈ p ɪ t s b ɜːr ɡ / PITS -burg ) is a city in and the county seat of Allegheny County, Pennsylvania , United States. It is the second-most populous city in Pennsylvania , after Philadelphia , and the 68th-most populous city in the U.S., with a population of 302,971 as of
3192-454: The Central, North Side/North Hills, South Side/South Hills, East End, and West End. Downtown Pittsburgh has 30 skyscrapers, nine of which top 500 feet (150 m). The U.S. Steel Tower is the tallest, at 841 ft (256 m). The Cultural District consists of a 14-block area of downtown along the Allegheny River . This district contains many theaters and arts venues and is home to
3276-786: The Dutch, who then created a fur-trading post in Albany in 1614. Jamestown, Virginia was the first permanent English colony in North America, it was established seven years earlier in 1607. From early colonial times, the Mid-Atlantic region was settled by a wider range of European people than in New England or the South. The Dutch New Netherland settlement along the Hudson River in New York City and New Jersey , and for
3360-518: The Elder , while the settlement was named "Pittsborough". During Pontiac's War , a loose confederation of Native American tribes laid siege to Fort Pitt in 1763; the siege was eventually lifted after Colonel Henry Bouquet defeated a portion of the besieging force at the Battle of Bushy Run . Bouquet strengthened the defenses of Fort Pitt the next year. During this period, the powerful nations of
3444-617: The Mid-Atlantic states provided the young United States with heavy industry and served as the " melting pot " of new immigrants from Europe. Cities grew along major ports, shipping routes, and waterways, including New York City and Newark on opposite sides of the Hudson River , Philadelphia on the Delaware River, Allentown on the Lehigh River , and Baltimore on the Chesapeake Bay . Note: The Mid-Atlantic region
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3528-643: The Mid-Atlantic, and 33 of the nation's top 100 counties based on per capita income are in the region. Most of the Mid-Atlantic states rank among the 15 highest-income states in the nation by both median household income and per capita income. The region is home to eight of the top 25 ranked universities in the nation: Cornell University in Ithaca, New York ; Columbia University and NYU in New York City; Princeton University in Princeton, New Jersey ;
3612-568: The Monongahela House in 1850, apparently to freedom. The Merchant's Hotel was also a place where African-American workers would advise slaves the state was free and aid them in getting to nearby stations of the Underground Railroad. Sometimes refugee slaves from the South stayed in Pittsburgh, but other times they continued North, including into Canada. Many slaves left the city and county for Canada after Congress passed
3696-399: The North American front of the Seven Years' War , began with the future Pittsburgh as its center. British General Edward Braddock was dispatched with Major George Washington as his aide to take Fort Duquesne. The British and colonial force were defeated at Braddock's Field . General John Forbes finally took the forks in 1758. He began construction on Fort Pitt , named after William Pitt
3780-432: The North Side, and the Golden Triangle are characterized by more density of housing, walking neighborhoods, and a more diverse, urban feel. Pittsburgh falls within the borders of the Northeastern United States as defined by multiple US Government agencies. Pittsburgh is the principal city of the Pittsburgh Combined Statistical Area , a combined statistical area defined by the U.S. Census Bureau . Pittsburgh falls within
3864-449: The Ohio River became the main base for settlers moving into the Northwest Territory . The federal government recognizes Pittsburgh as the starting point for the Lewis and Clark Expedition . Preparations began in Pittsburgh in 1803 when Meriwether Lewis purchased a keelboat that would later be used to ascend the Missouri River . The War of 1812 cut off the supply of British goods, stimulating American industry. By 1815, Pittsburgh
3948-403: The Ohio headwaters was long inhabited by the Shawnee and several other settled groups of Native Americans . Shannopin's Town was an 18th-century Lenape (Delaware) town located roughly from where Penn Avenue is today, below the mouth of Two Mile Run, from 30th Street to 39th Street. According to George Croghan , the town was situated on the south bank of the Allegheny, nearly opposite what
4032-452: The Ohio in a 1717 manuscript, and later that year European fur traders established area posts and settlements. In 1749, French soldiers from Quebec launched an expedition to the forks to unite Canada with French Louisiana via the rivers. During 1753–1754, the British hastily built Fort Prince George before a larger French force drove them off. The French built Fort Duquesne based on LaSalle's 1669 claims. The French and Indian War ,
4116-430: The U.S. The city lies in the USDA plant hardiness zone 6b except along the rivers where the zone is 7a. The area has four distinct seasons: winters are cold and snowy, springs and falls are mild with moderate levels of sunshine, and summers are warm. As measured by percent possible sunshine, summer is by far the sunniest season, though annual sunshine is low among major US cities at well under 50%. The warmest month of
4200-426: The U.S. Pittsburgh is the principal city of the greater Pittsburgh–Weirton–Steubenville combined statistical area which includes parts of Ohio and West Virginia . Pittsburgh is known as "the Steel City" for its dominant role in the history of the U.S. steel industry . It developed as a vital link of the Atlantic coast and Midwest , as the mineral-rich Allegheny Mountains led to the region being contested by
4284-518: The United States . The nation's capital was constructed in Washington, D.C. in the late 18th century, and relocated there from Philadelphia in 1800. In the early part of the 19th century, New York and Pennsylvania overtook Virginia as the nation's two most populous states, and the Mid-Atlantic region overtook New England as the most important trading and industrial center in the nation. During this period, large numbers of German , Irish , Italian , Jewish , Polish , and other immigrants arrived in
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#17327732680254368-399: The air and the rivers. The "Renaissance II" project followed in 1977, focused on cultural and neighborhood development. The industrial base continued to expand through the 1970s, but beginning in the early 1980s both the area's steel and electronics industries imploded during national industrial restructuring. There were massive layoffs from mill and plant closures. In the later 20th century,
4452-425: The area shifted its economic base to education, tourism, and services, largely based on healthcare/medicine, finance, and high technology such as robotics. Although Pittsburgh successfully shifted its economy and remained viable, the city's population has never rebounded to its industrial-era highs. While 680,000 people lived in the city proper in 1950, a combination of suburbanization and economic turbulence resulted in
4536-473: The assistance of Alaska lawyer Darrel J. Gardner. Tripoli organizes many rocket launches, both regional events hosted by local prefectures and larger international launches like LDRS ("Large Dangerous Rocket Ships") and BALLS. They also provide insurance for organized launches, administer a member certification program for flying high power rockets, and perform testing and certification of commercial hobby rocket motors. Tripoli has expanded internationally over
4620-402: The borders of Appalachia as defined by the Appalachian Regional Commission , and has long been characterized as the "northern urban industrial anchor of Appalachia." In its post-industrial state, Pittsburgh has been characterized as the "Paris of Appalachia", recognizing the city's cultural, educational, healthcare, and technological resources, and is the largest city in Appalachia. Under
4704-406: The city's population. Pittsburgh also became a main destination of the African-American Great Migration from the rural South during the first half of the 20th century. Limited initially by discrimination, some 95% percent of the men became unskilled steel workers. During World War II , demand for steel increased and area mills operated 24 hours a day to produce 95 million tons of steel for
4788-486: The city's rivers and hollows. The Great Allegheny Passage and Chesapeake and Ohio Canal Towpath connect the city directly to downtown Washington, D.C. (some 335 miles [539 km] away) with a continuous bike/running trail. The city consists of the Downtown area, called the Golden Triangle, and four main areas surrounding it. These surrounding areas are subdivided into distinct neighborhoods (Pittsburgh has 90 neighborhoods). Relative to downtown, these areas are known as
4872-413: The city. However, the city divested from steel and, since the 1990s, Pittsburgh has focused its energies on the healthcare, education, and technology industries. Pittsburgh is home to large medical providers, including the University of Pittsburgh Medical Center , Allegheny Health Network , and 68 colleges and universities , including research and development leaders Carnegie Mellon University and
4956-476: The community and various developers to create a master plan for a mixed-use development that included a riverfront park, office space, housing, health-care facilities, and indoor practice fields for the Pittsburgh Steelers and Pitt Panthers . Construction of the development began in 1998. The SouthSide Works has been open since 2005, featuring many stores, restaurants, offices, and the world headquarters for American Eagle Outfitters . The East End of Pittsburgh
5040-411: The downtown skyline, and numerous other residential neighborhoods such as Sheraden and Elliott . Many of Pittsburgh's patchwork of neighborhoods still retain ethnic characters reflecting the city's settlement history. These include: Several neighborhoods on the edges of the city are less urban, featuring tree-lined streets, yards and garages, with a more suburban character. Oakland, the South Side,
5124-586: The first time in 2020, and then also achieved that goal in 2021, 2022, and were on track for better results in 2023. Mid-Atlantic states The Mid-Atlantic is a region of the United States located in the overlap between the Northeastern and Southeastern states of the United States . Its exact definition differs upon source, but the region typically includes New Jersey , Maryland , Virginia , Delaware , West Virginia , District of Columbia , and Pennsylvania . Some sources include New York , while others exclude Pennsylvania . However, according
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#17327732680255208-437: The highest appreciation of the largest 25 metropolitan statistical areas in the United States, with 22 of the largest 25 metropolitan statistical areas experiencing depreciations in housing values. In September 2009, the 2009 G20 Pittsburgh summit was held in Pittsburgh. Pittsburgh has an area of 58.3 square miles (151 km ), of which 55.6 square miles (144 km ) is land and 2.8 square miles (7.3 km ), or 4.75%,
5292-545: The late-1980s, it transitioned from a regional club into formal, incorporated, USA-national organization, with a focus on self-regulating advanced, High-Power Rocketry (HPR). The deregulation of the aviation industry by the Reagan Administration also facilitated the growth of HPR activities. The founder was Francis G. Graham. Early members who helped expand the club were Curtis W. Hughes, Kenneth J. Good, and Arthur R. Bower, with Thomas J. (Tom) Blazanin leading its formalization as an incorporated national organization in 1987 with
5376-411: The nation's founding and the development of the nation. Each of the seven states were members of the Thirteen Colonies that sent delegates to the Second Continental Congress , which assembled in Philadelphia and unanimously adopted the Declaration of Independence , and formalized the Continental Army under George Washington 's command during the American Revolutionary War . Following independence,
5460-412: The original Thirteen Colonies and were particularly prevalent in Province of Pennsylvania and the geographic region that ultimately broke from Pennsylvania to form the Delaware Colony . Among the 13 colonies, the Province of Maryland was the only colony with a substantial Catholic population. Following the American Revolutionary War, the Mid-Atlantic region hosted each of the historic capitals of
5544-431: The record cold daily maximum is −3 °F (−19 °C), which occurred three times, most recently the day of the all-time record low, while, conversely, the record warm daily minimum is 82 °F (28 °C) on July 1, 1901. Due to elevation and location on the windward side of the Appalachian Mountains, 100 °F (38 °C)+ readings are very rare, and were last seen on July 15, 1995. Average annual precipitation
5628-453: The region as including Delaware, Maryland, Pennsylvania, Virginia, and Washington, D.C., and parts of New Jersey, New York, and North Carolina. West Virginia and Virginia are atypical of this region in a few ways. These states both primarily lie within the Southern American dialect region , and the major religious tradition is largely Evangelical Christian , with 30% in Virginia and 39% in West Virginia identifying as evangelicals. Although
5712-403: The region continued to be a magnet for people of diverse nationalities. The area that came to be known as the Middle Colonies served as a strategic bridge between the North and South. The New York and New Jersey campaign during the American Revolutionary War saw more battles than any other theater of the conflict. Philadelphia , midway between the northern and southern colonies, was home to
5796-403: The region is inclusive of the states of Delaware, Maryland, New Jersey, New York, Pennsylvania, Virginia, and West Virginia, and the federal district of the District of Columbia, with some additional sources including or excluding other areas in parts of the Northeast region and the South Atlantic states , for practical reasons. The United States Census Bureau defines the Mid-Atlantic as
5880-451: The region link an almost contiguous urban region, which includes large and small cities and their respective suburbs and forms the Northeast megalopolis , one of the world's most important concentrations of finance, media, communications, education , medicine, and technology. The Mid-Atlantic is a relatively affluent region of the nation; nearly half of the nation's 100 highest-income counties based on median household income are located in
5964-588: The region's coastal cities, including Baltimore , Newark , New York City , Philadelphia, and interior cities such as Pittsburgh , and Rochester , Albany , and Buffalo , with their skyscrapers and subways, which emerged as icons of modernity and American economic and cultural power in the 20th century. In the late 19th century, the region played a vital and historic role in the development of American culture , commerce, trade, and industry sectors . Historian Frederick Jackson Turner labeled it "typically American." The Northeast Corridor and Interstate 95 in
6048-605: The sixth-best area for U.S. job growth. Pittsburgh is sometimes called the "City of Bridges" for its 446 bridges . Its rich industrial history left the area with renowned cultural institutions, including the Carnegie Museums of Pittsburgh , Pittsburgh Parks Conservancy , Pittsburgh Zoo & Aquarium , Phipps Conservatory and Botanical Gardens , the National Aviary , and a diverse cultural district . The city's major league professional sports teams include
6132-792: The states again gathered in Philadelphia at the Constitutional Convention , in 1788, where they ratified the United States Constitution , which remains the oldest and longest-standing written and codified national constitution in force in the world. The Mid-Atlantic region was settled during the colonial era between the early 17th century and the conclusion of the American Revolutionary War in 1783 by European Americans of primarily Dutch , German , Swedish , English , and other Western European ethnicities. Religious pluralism and freedoms existed in
6216-862: The universities, and the Petersen Events Center . The Strip District to the west along the Allegheny River is an open-air marketplace by day and a clubbing destination by night. Bloomfield is Pittsburgh's Little Italy and is known for its Italian restaurants and grocers. Lawrenceville is a revitalizing rowhouse neighborhood popular with artists and designers. The Hill District was home to photographer Charles Harris as well as various African-American jazz clubs. Other East End neighborhoods include Point Breeze , Regent Square , Highland Park , Homewood , Lincoln-Lemington-Belmar , Larimer , East Hills , East Liberty , Polish Hill , Hazelwood , Garfield, Morningside, and Stanton Heights. The West End includes Mt. Washington , with its famous view of
6300-631: The value of homes in the South Side had increased in value by about 10% annually for the 10 years leading up to 2014. East Carson Street has developed as one of the most vibrant areas of the city, packed with diverse shopping, ethnic eateries, vibrant nightlife, and live music venues. In 1993, the Urban Redevelopment Authority of Pittsburgh purchased the South Side Works steel mill property. It collaborated with
6384-400: The war effort. This resulted in the highest levels of air pollution in the city's almost century of industry. The city's reputation as the "arsenal of democracy" was being overshadowed by James Parton 's 1868 observation of Pittsburgh being "hell with the lid off." Following World War II, the city launched a clean air and civic revitalization project known as the "Renaissance," cleaning up
6468-604: The year in Pittsburgh is July, with a 24-hour average of 73.2 °F (22.9 °C). Conditions are often humid, and combined with highs reaching 90 °F (32 °C) on an average 9.5 days a year, a considerable heat index arises. The coolest month is January, when the 24-hour average is 28.8 °F (−1.8 °C), and lows of 0 °F (−18 °C) or below can be expected on an average 2.6 nights per year. Officially, record temperatures range from −22 °F (−30 °C), on January 19, 1994 to 103 °F (39 °C), which occurred three times, most recently on July 16, 1988;
6552-588: The years, and currently has clubs in many different countries including Argentina, Australia, Canada, France, Germany, Ireland, Italy, Mexico, Netherlands, Spain, Sweden, Switzerland, the United Kingdom, and the United States. Additionally, it formerly was active in Israel. Tripoli was involved as a plaintiff in a nine-year lawsuit (in conjunction with the National Association of Rocketry as
6636-486: Was federally recognized as "Pittsburg", though use of the final h was retained during this period by the city government and other local organizations. After a public campaign, the federal decision to drop the h was reversed. The Pittsburg Press continued spelling the city without an h until 1921. [REDACTED] Kingdom of France 1690s–1763 [REDACTED] Great Britain 1681–1781 [REDACTED] United States 1776–present The area of
6720-545: Was incorporated as a borough on April 22, 1794, with the following Act: "Be it enacted by the Pennsylvania State Senate and Pennsylvania House of Representatives of the Commonwealth of Pennsylvania ... by the authority of the same, that the said town of Pittsburgh shall be ... erected into a borough, which shall be called the borough of Pittsburgh for ever." From 1891 to 1911, the city's name
6804-517: Was once the site of railyards and associated dense, inexpensive housing for mill and railroad workers. Starting in the late 20th century, the city undertook a Main Street program in cooperation with the National Trust for Historic Preservation , encouraging design and landscape improvements on East Carson Street, and supporting new retail. The area has become a local Pittsburgher destination, and
6888-542: Was producing significant quantities of iron, brass, tin, and glass. On March 18, 1816, the 46-year-old local government became a city. It was served by numerous river steamboats that increased trading traffic on the rivers. In the 1830s, many Welsh people from the Merthyr steelworks immigrated to the city following the aftermath of the Merthyr Rising . By the 1840s, Pittsburgh was one of the largest cities west of
6972-625: Was the nation's eighth-largest city , accounting for between one-third and one-half of national steel output. The Pittsburgh Agreement was subscribed in May 1918 between the Czech and Slovak nationalities, as envisioned by T. G. Masaryk , concerning the future foundation of Czechoslovakia . The city suffered severe flooding in March 1936. The city's population swelled to more than a half million, attracting numerous European immigrants to its industrial jobs. By 1940, non-Hispanic whites were 90.6% of
7056-514: Was the first constable, and William Troop was the first clerk. Following the American Revolution , the village of Pittsburgh continued to grow. One of its earliest industries was boat building for settlers of the Ohio Country . In 1784, Thomas Vickroy completed a town plan which was approved by the Penn family attorney. Pittsburgh became a possession of Pennsylvania in 1785. The following year,
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