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86-726: Development began in the 1960s when Westinghouse, a Pittsburgh , Pennsylvania company, first engineered an automated people mover (APM) for use on a demonstration project at the Allegheny County Fairgrounds in Pittsburgh. The technology came to be known as the Skybus, because it was a rubber-tired vehicle, similar to a bus that operated on a designated elevated roadway. Engineers believed that it would be able to move 5,000 to 14,000 per hour per direction, and could offer around-the-clock service every two minutes. After

172-531: A Superior Court and Sheriff (as an officer of the court ), both located in a designated "shire town". Bennington County, Vermont has two shire towns; the court for "North Shire" is in the shire town Manchester , and the Sheriff for the county and court for "South Shire" are in the shire town Bennington. In 2024, Connecticut , which had not defined their counties for anything but statistical, historical and weather warning purposes since 1960, along with ending

258-535: 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

344-593: A Skybus system in Pennsylvania were rejected. Despite this, work continued on the technology. In 1971, Westinghouse was finally able to commercialize its APM technology, selling what it called the C-100 system to Tampa International Airport , ushering in dozens similar people mover systems at airports around the world. The C-100 was improved with a updated second-generation of vehicles, and the more heavily updated CX-100 system. All together, 14 systems were delivered in

430-410: A choice in end caps. The first Innovia people mover system delivered opened in 2005 at Dallas/Fort Worth International Airport. The technology transferred to Bombardier Transportation in 2001, which continued to sell both the newer Innovia APM 200 and the older CX-100 technology under the name Innovia APM 100. The last Innovia APM 100 system delivered was delivered in 2010). Amid the development of

516-455: A combination of tunnels and elevated guideways. They can assume three different system configurations – shuttle, loop, and pinched loop. The shuttle system is the least complex. One train operates on each lane of a dual lane guideway. After the train dwells in one of the end stations for passengers for entry and exit, it reverses direction and returns to the opposite end station. Because Innovia APM vehicles are fully automated, they do not require

602-522: A complete package. Typically, these integrated systems are delivered as a turnkey transit system contract. Innovia APM systems are most often used in airport settings as inter-terminal connections or links to local amenities in and around the airport such as car rentals, parking garages and local public transit. Currently there are three urban systems used as feeder systems as part of a larger mass transit network. Innovia APM systems operate in tunnels, on elevated guideways, and sometimes in an open cut (pit) or

688-410: A county seat may be an independent city surrounded by, but not part of, the county of which it is the administrative center; for example, Fairfax City is both the county seat of Fairfax County, Virginia and completely surrounded by Fairfax County, but the city is politically independent of the county. When the county seat is in the independent city, government offices such as the courthouse may be in

774-547: 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,

860-476: A driver's cab, which allows them to be bidirectional. A loop is an enclosed system that connects multiple stations along a track or guideway that is a continuous circle or closed curve. Loop systems can be designed as either a single lane or a dual lane configuration. A pinched-loop system shares common characteristics with both the shuttle and the loop systems. Pinched loops look like a dual-lane shuttle (with two parallel guideways), but trains can go from one track to

946-613: 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

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1032-685: 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

1118-647: A major field of research in Chinese historical geography, especially from the 1960s to the 1980s. There are 1,355 counties in Mainland China out of a total of 2,851 county-level divisions. In Taiwan , the first counties were first established in 1661 by the Kingdom of Tungning . The later ruler Qing empire inherited this type of administrative divisions. With the increase of Han Chinese population in Taiwan,

1204-480: 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

1290-476: A third generation model, Bombardier decided to rebrand its entire automated transit system portfolio as Innovia. The two previous models became legacy systems and are no longer marketed to new customers, although existing customers can and do still order more vehicles as needed. The third and latest model is called the Innovia APM 300 system. It looks very similar to the original Innovia people mover (now called

1376-578: 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

1462-486: 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

1548-471: 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

1634-409: Is known as the seat of its county. Generally, the county legislature, county courthouse, sheriff's department headquarters, hall of records, jail and correctional facility are located in the county seat, though some functions (such as highway maintenance, which usually requires a large garage for vehicles, along with asphalt and salt storage facilities) may also be located or conducted in other parts of

1720-574: 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

1806-679: 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

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1892-573: 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

1978-513: 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

2064-754: 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

2150-492: The 68th-most populous city in the U.S., with a population of 302,971 as of 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 ,

2236-582: 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

2322-786: 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

2408-744: 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

2494-487: 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

2580-746: 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

2666-561: 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

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2752-468: 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

2838-523: 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

2924-564: The Republic of China took over. There are 13 county seats in Taiwan, which function as county-administered cities , urban townships , or rural townships . In most of the United States , a county is an administrative or political subdivision of a state that consists of a geographic area with specific boundaries and usually some level of governmental authority. The city, town, or populated place that houses county government

3010-400: The U.S. state of Vermont and in several other English-speaking jurisdictions, such as Venezuela . In Canada , the provinces of Ontario , Quebec , New Brunswick , Prince Edward Island , and Nova Scotia have counties as an administrative division of government below the provincial level, and thus county seats. In the provinces of Prince Edward Island, New Brunswick, and Nova Scotia

3096-460: 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

3182-528: The second-largest in Pennsylvania , and the 26th-largest in 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

3268-587: 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

3354-427: The 1980s and 1990s. The APM technology was purchased by AEG in 1988 and later transferred to Adtranz in 1996. As the competing Crystal Mover system grew in popularity, Adtranz began developing a new, more aerodynamic model known as Innovia, which started testing in 1999. In addition to its sleeker appearance, the new Innovia people mover also offered greater speeds, tighter turns, full composite construction and

3440-454: 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

3526-517: The Eastern Han dynasty , the number of counties increased to above 1,000. About 1400 existed when the Sui dynasty abolished the commandery level (郡 jùn), which was the level just above counties, and demoted some commanderies to counties. In Imperial China, the county was a significant administrative unit because it marked the lowest level of the imperial bureaucratic structure; in other words, it

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3612-518: 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

3698-565: The Innovia APM 200 system), but is longer, more energy efficient and capable of 6-car train configurations. In November 2014, Bombardier signed a joint venture agreement with China's CRRC Nanjing Puzhen to manufacture and market Innovia APM and Innovia Monorail systems in the Chinese market. Innovia APM vehicles are assembled in West Mifflin, Pennsylvania , part of the Greater Pittsburgh Area and not far from where

3784-568: 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

3870-522: 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

3956-728: 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

4042-692: 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

4128-565: 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

4214-507: 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 ,

4300-481: 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

4386-884: The United States, followed by Towson , the county seat of Baltimore County, Maryland . Likewise, some county seats may not be incorporated in their own right, but are located within incorporated municipalities. For example, Cape May Court House, New Jersey , though unincorporated, is a section of Middle Township , an incorporated municipality. In some states, often those that were among the original Thirteen Colonies , county seats include or formerly included "Court House" as part of their name, such as Spotsylvania Courthouse, Virginia . Most counties have only one county seat. However, some counties in Alabama , Arkansas , Georgia , Iowa , Kentucky , Massachusetts , Mississippi , Missouri , New Hampshire , New York , and Vermont have two or more county seats, usually located on opposite sides of

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4472-399: 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,

4558-425: 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

4644-547: 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

4730-494: 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

4816-542: 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

4902-413: 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

4988-476: 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

5074-418: The county, especially if it is geographically large. A county seat is usually an incorporated municipality . The exceptions include the county seats of counties that have no incorporated municipalities within their borders, such as Arlington County, Virginia , where the county seat is the entire county. Ellicott City , the county seat of Howard County, Maryland , is the largest unincorporated county seat in

5160-420: The county. Examples include Harrison County, Mississippi , which has both Biloxi and Gulfport as county seats, and Hinds County, Mississippi , which has both Raymond and the state capital of Jackson . The practice of multiple county seat towns dates from the days when travel was difficult. There have been few efforts to eliminate the two-seat arrangement, since a county seat is a source of civic pride for

5246-470: 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,

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5332-739: The first demonstration trains ran. The multi-building facility specializes in automated people mover technology and has three test tracks. Vehicles manufactured by the joint venture with CRRC Nanjing Puzhen are manufactured in Wuhu , Anhui Province in China. The Innovia APM 256 was designed as a direct replacement for the VAL 256 system Innovia APM vehicles operate as part of a fully integrated transit system with all elements (vehicles, signaling, communications, power supply and distribution, trackwork, platform screen doors, etc.) designed to function together as

5418-407: The first time in 2020, and then also achieved that goal in 2021, 2022, and were on track for better results in 2023. County seat A county seat is an administrative center, seat of government , or capital city of a county or civil parish . The term is in use in five countries: Canada , China , Hungary , Romania , and the United States . An equivalent term, shire town , is used in

5504-437: 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%,

5590-625: The independent city under an agreement, such as in Albemarle , or may in be enclaves of the county surrounded by the independent city, such as in Fairfax . Others, such as Prince William , have the courthouse in an enclave surrounded by the independent city and have the county government, the Board of Supervisors, in a different part of the county, far from the county seat. The following counties have their county seat in an independent city: Bedford

5676-558: The mineral-rich Allegheny Mountains led to the region being contested by 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

5762-444: The number of counties also grew by time. By the end of Qing era, there were 11 counties in Taiwan. Protestant missionaries in China first romanized the term as hien . When Taiwan became a Japanese colony in 1895, the hierarchy of divisions also incorporated into the Japanese system in the period when Taiwan was under Japanese rule. By September 1945, Taiwan was divided into 8 prefectures ( 州 and 廳 ), which remained after

5848-465: The other changing direction via switches at each end. As a result, traffic on a pinched loop flows in opposite directions on two parallel tracks, but can accommodate many stations. Competing systems: 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

5934-431: 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

6020-475: 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

6106-657: The state's area, has no borough government or borough seat. One borough, the Lake and Peninsula Borough , has its borough seat located in another borough, namely King Salmon in Bristol Bay Borough . In Louisiana , which is divided into parishes rather than counties, county seats are referred to as "parish seats". In New England , counties have served mainly as dividing lines for the states' judicial systems. Rhode Island has no county level of government and thus no county seats, and Massachusetts has dissolved many but not all of its county governments. In Vermont , Massachusetts , and Maine county government consists only of

6192-723: The term "shire town" is used in place of county seat. County seats in China are the administrative centers of the counties in the People's Republic of China . Xian have existed since the Warring States period and were set up nationwide by the Qin dynasty . The number of counties in China proper gradually increased from dynasty to dynasty. As Qin Shi Huang reorganized the counties after his unification, there were about 1,000. Under

6278-570: The tests, Westinghouse and the Port Authority of Allegheny County attempted to build a larger system, the Transit Expressway Revenue Line , which proved controversial. Political leaders were skeptical of the rubber-tired mass transit technology, and accused the Port Authority of improperly choosing Westinghouse's APM over a competing proposal for a more traditional light rail system. Eventually plans to implement

6364-416: The towns involved, along with providing employment opportunities. There are 33 counties with multiple county seats in 11 states: Alaska is divided into boroughs rather than counties; the county seat in these case is referred to as the "borough seat"; this includes six consolidated city-borough governments (one of which is styled as a "municipality"). The Unorganized Borough, Alaska , which covers 49% of

6450-862: 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

6536-624: The use of county seats in particular, will fully transition with the permission of the United States Census Bureau to a system of councils of government for the purposes of boundary definition and as county equivalents. Two counties in South Dakota , Oglala Lakota and Todd , have their county seat and government services centered in a neighboring county. Their county-level services are provided by Fall River County and Tripp County , respectively. In Virginia ,

6622-572: 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

6708-400: 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

6794-604: 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;

6880-486: 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

6966-545: 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

7052-517: 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

7138-542: 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

7224-625: 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

7310-584: 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,

7396-583: Was the lowest level that the government reached. Government below the county level was often undertaken through informal non-bureaucratic means, varying between dynasties. The head of a county was the magistrate , who oversaw both the day-to-day operations of the county as well as civil and criminal cases. The current number of counties mostly resembled that of the later years of the Qing dynasty . Changes of location and names of counties in Chinese history have been

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