Pittsburgh is a city located in southwestern Pennsylvania at the confluence of the Allegheny and Monongahela rivers, which form the Ohio River. It is the second-most populous city in Pennsylvania and the 68th-most populous in the U.S., with a population of over 300,000. Pittsburgh anchors a metropolitan area of nearly 2.5 million residents, making it the largest metro area in the Ohio Valley and Appalachia.
On July 1, 1901, Pittsburgh experienced a record warm daily minimum temperature of 82 °F (28 °C).
In 1901, J. P. Morgan and attorney Elbert H. Gary merged Carnegie Steel Company and several other companies to form U.S. Steel.
In 1901, the Pittsburgh Pirates claimed a pre-World Series title.
In 1902, the Pittsburgh Pirates claimed a pre-World Series title.
In 1907, Allegheny City, originally an independent entity, was annexed and became the North Side of Pittsburgh.
By 1910, Pittsburgh had become the nation's eighth-largest city and was responsible for producing between one-third and one-half of the national steel output.
In 1911, Magee Womens Hospital was established in Pittsburgh, contributing to the city's growing medical infrastructure.
In 1911, the federal government still recognized the city's name as "Pittsburg," although the city government and local organizations retained the use of the final 'h'.
In 1912, Duquesne Light, one of the original power companies, was founded by George Westinghouse to serve the city.
In 1912, the Duquesne University Red Masquers were founded, becoming the oldest continuously producing theater company in Pennsylvania.
In 1914, Pitt women began play before being reintroduced in 1970.
In May 1918, the Pittsburgh Agreement was subscribed between Czech and Slovak nationalities, as envisioned by T. G. Masaryk, regarding the future foundation of Czechoslovakia.
In 1918, the Nabisco factory was built, later to be refurbished into modern office space.
In the 1918-1919 season, Pittsburgh experienced its lowest snowfall, with only 8.8 inches (22 cm) recorded.
In 1919, Andrew Carnegie's Pittsburgh Locomotive and Car Works, which manufactured for the rail industry, ceased operations.
On November 2, 1920, KDKA 1020 AM, the world's first commercially licensed radio station, began airing.
In 1921, The Pittsburg Press continued to spell the city's name without an 'h' until this year, after which the spelling was changed.
In 1924, the NHL awarded one of its first franchises to the Pittsburgh Yellow Jackets.
In 1927, the Pittsburgh Steeling company was established, and the NFL's Pittsburgh Steelers team was later named after it.
In 1928, the University of Pittsburgh won a pre-NCAA tournament National Championship.
In 1930, Pittsburgh recorded its lowest annual precipitation at 22.65 inches (575 mm).
In 1930, the University of Pittsburgh won a pre-NCAA tournament National Championship.
In 1933, the Rooney family acquired ownership of the Pittsburgh Steelers football team, marking the beginning of a long-standing family ownership.
Since the 1933 election, Democrats have been elected consecutively to the mayor's office.
In March 1936, the city of Pittsburgh experienced severe flooding, causing widespread damage.
In 1936, the Pittsburgh Hornets farm team was founded and lasted until 1967.
In 1937, Pittsburgh suburban courses hosted PGA Championships.
By 1940, non-Hispanic whites constituted 90.6% of the city's population, and Pittsburgh became a main destination for African-Americans during the Great Migration. Most African American men became unskilled steel workers.
In 1940, Duquesne University reached the NCAA tournament Final Four.
In 1941, the University of Pittsburgh reached the NCAA tournament Final Four.
In 1947, the Pittsburgh Ironmen participated in the inaugural NBA season.
In 1950, Pittsburgh's city population reached 680,000, but then declined due to suburbanization and economic changes, even as the metropolitan area population increased.
In the 1950-1951 season, Pittsburgh recorded its highest snowfall, with 80 inches (200 cm).
On April 1, 1954, WQED 13, the local PBS member station in Pittsburgh, was established.
In 1954, Allegheny General (AGH) was among the first medical facilities to administer Cobalt therapy.
In 1955, Duquesne University won the National Invitation Tournament (NIT) title.
In 1955, the polio vaccine developed by American virologist Jonas Salk, who was a professor at the University of Pittsburgh, came into use.
In 1956, indoor skating at the Exposition Building on the Allegheny River and Duquesne Gardens in Oakland ended.
In 1956, the suburban Conway Rail Yard became the largest freight rail center in the world.
In 1957, Pittsburgh suburban courses hosted LPGA Championships.
In 1959, Pittsburgh's wastewater treatment plant was constructed to treat stormwater and wastewater collected by the combined sewer system.
From 1961-63, the Pittsburgh Rens existed.
In 1961, the Civic Arena opened after the displacement of 1,551 mostly Black residents and 413 businesses in the Lower Hill District during the 1950s. This project, part of Pittsburgh's revitalization efforts, led to a significant decrease in the neighborhood's population.
Point Park University was founded in 1961.
In 1965, Pittsburgh suburban courses hosted PGA Championships.
In 1966, pianist-composer Mary Lou Williams honored her hometown of Pittsburgh with an album featuring Leon Thomas.
In 1967, the Pittsburgh Penguins NHL team was founded.
The Pittsburgh Hornets farm team ended its run in 1967.
In 1968, George A. Romero's film 'Night of the Living Dead' was released, establishing Pittsburgh as the birthplace of the modern zombie film genre.
In 1968, UPMC performed the state's first heart transplant.
In 1968, the Pittsburgh Pipers, led by Connie Hawkins, won the first American Basketball Association championship.
Pittsburgh's ABA franchise won the title in 1968.
From 1970-72, the Pittsburgh Condors existed.
In 1970, Pitt women's basketball was reintroduced.
In 1970, non-Hispanic whites made up 78.7% of Pittsburgh's population, a larger percentage compared to the 64.8% reported in 2010.
In 1971, the Pittsburgh Pirates were the first Major League team to field an all-minority lineup.
Since 1972, the Pittsburgh Steelers have sold out every home game, reflecting their enduring popularity.
In 1973, lifelong Democrats ran off the party ticket.
In 1975, the Ryder Cup was hosted at Pittsburgh suburban courses.
In 1977, Pittsburgh launched the "Renaissance II" project, which focused on cultural and neighborhood development within the city.
In 1977, lifelong Democrats ran off the party ticket.
In 1980, UPMC announced a $250 million expansion and hired transplant pioneer Thomas Starzl.
In 1980, the Conway Rail Yard lost its title as the world's largest freight rail center.
In 1983, UPMC pioneered the first known cystic fibrosis heart-lung transplant.
In 1984, UPMC performed the world's first simultaneous liver and heart transplant operation on a child, 6-year-old Stormie Jones.
In 1984, surgeons at Allegheny General pioneered modern brain surgery techniques.
Since 1984, Pittsburgh has hosted INPEX, the world's largest invention trade show.
In 1985, UPMC performed the youngest heart-lung transplant on a 9-year-old.
In 1985, a UPMC surgery team performed a liver transplant on 5-year-old Amie Garrison after flying to Baylor University. Also in 1985, UPMC surgeons Drs. Griffith, Hardesty, and Trento revealed a new device after a heart-lung transplant.
In 1986, UPMC announced a $230 million modernization project.
On July 16, 1988, Pittsburgh recorded a record high temperature of 103 °F (39 °C).
In 1989, UPMC performed the world's first heart-liver-kidney transplant.
According to the 1990 census, Pittsburgh had the fifth-largest Ukrainian community in the United States.
In 1990, the Pittsburgh Pirates made a National League Championship Series appearance.
In 1991, the Pittsburgh Penguins won the Eastern Conference title and the Stanley Cup championship.
In 1992, the Pittsburgh Penguins won the Eastern Conference title and the Stanley Cup championship.
In 1993, the Pittsburgh Pirates began their MLB record for most consecutive losing seasons, which lasted until 2012.
On January 19, 1994, Pittsburgh recorded a record low temperature of -22 °F (-30 °C).
The last time Pittsburgh experienced temperatures of 100 °F (38 °C) or higher was on July 15, 1995.
In 1995, the Pittsburgh Piranhas reached the CBA Finals.
In 1996, the Italian government approved UPMC's planned Sicily ISMETT branch, allowing transplant surgeons to supervise and deliver the world's third--and first public—cross species marrow transplant at University of California, San Francisco.
In 1997, UPMC conducted the world's first heart-liver transplant on an infant.
In 1997, the Pittsburgh Pirates' September pennant race featured the franchises' last no-hitter and last award for Sporting News' Executive of the Year.
By 1998, the Nabisco factory refurbishment into modern office space was completed. It eventually housed Google's research and technology offices, known as Bakery Square.
In 1998, UPMC carried out the first pediatric heart-double lung-liver transplant.
In 1998, the Riverhounds, an American professional soccer team, were founded.
In 1999, Mario Lemieux became the owner of the Pittsburgh Penguins.
In 1999, UPMC's Thomas Detre founded the International Society for Bipolar Disorders at a world medical conference in Pittsburgh.
Between 2000 and 2010, the population of Pittsburgh decreased by 8.6%, according to the 2010 census.
In 2000, Pittsburgh Public Schools teachers were paid well relative to their peers.
In 2000, the $80 million UPMC Sports Performance Complex for the Pittsburgh Panthers & Pittsburgh Steelers opened.
In 2000, the Keystone State Wrestling Alliance (KSWA) professional wrestling promotion was founded in Pittsburgh.
Since 2000, UPMC has been consistently ranked among U.S. News & World Report's "Honor Roll" as one of the best hospitals overall in the United States.
In 2002, AGH opened its $30 million, 5-floor, 100,000 sq. ft. cancer center.
In 2002, the Pittsburgh Passion, the city's professional women's football team, was founded.
In 2003, the $130 million, 350,000 sq. ft. Hillman Cancer Center opened, and UPMC entered into an 8-year, $420 million agreement with IBM to upgrade medical technologies & health information systems.
Since 2003, Pittsburgh has hosted Tekko, a four-day anime convention.
From 2004-08, the Pittsburgh Xplosion existed.
In 2004, remnants of Hurricane Ivan caused record rainfall in Pittsburgh, leading to occasional flooding in low-lying areas near rivers and creeks.
As of 2005, Pittsburgh had 31,000 trees along 900 miles of streets, enhancing the city's urban environment.
In 2005, Pittsburgh hosted annual world-title fishing competitions of the Bassmaster Classic.
In 2005, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2005, the Senior PGA Championship was hosted at Pittsburgh suburban courses.
Between 2006 and 2011, the Pittsburgh metropolitan statistical area experienced over 10% appreciation in housing prices, the highest among the largest 25 metropolitan statistical areas in the United States.
In 2006, Luke Ravenstahl was sworn in as mayor of Pittsburgh.
In 2006, the Pennsylvania Film Production Tax Credit was passed, accelerating Pittsburgh's film industry.
In 2006, the Pittsburgh Steelers won their fifth Super Bowl, adding to their legacy.
Since 2006, Anthrocon, the world's largest furry convention, has been held annually at the David L. Lawrence Convention Center in Pittsburgh.
Since 2006, Pittsburgh has hosted Anthrocon, a furry convention.
In 2007, the 25% tax credit incentive was established, notably impacting the region's economy and job creation.
In 2007, the annual payroll of Pittsburgh's technology industries exceeded $10.8 billion.
In 2008, the Pittsburgh Penguins won the Eastern Conference title.
In September 2009, the 2009 G20 Pittsburgh summit was held in Pittsburgh, hosting leaders and representatives from major global economies.
From 2009-10, the Pittsburgh Phantoms existed.
In 2009, Pittsburgh hosted annual world-title fishing competitions of the Forrest Wood Cup.
In 2009, Pittsburgh hosted the G20 Pittsburgh summit, an international forum for the governments and central bank governors from 19 countries and the European Union.
In 2009, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2009, UPMC performed the nation's first double hand transplant.
In 2009, the $600 million UPMC Children's Hospital of Pittsburgh opened.
In 2009, the East Mall public housing complex was demolished and replaced by businesses like Target. This action was cited as evidence of gentrification and a strategy to disperse Black and low-income populations.
In 2009, the Pittsburgh Penguins won the Eastern Conference title and the Stanley Cup championship.
In 2009, the Pittsburgh Steelers won a league record sixth Super Bowl.
Since 2009, Pittsburgh has hosted the DUG East energy trade show.
According to a 2010 Association of Religion Data Archives (ARDA) study, Pittsburgh metro area residents included 773,341 Catholics, 326,125 Mainline Protestants, 174,119 Evangelical Protestants, 20,976 Black Protestants, and 16,405 Orthodox Christians, with 996,826 listed as "unclaimed" and 16,405 as "other".
According to the 2010 census, there were 305,704 people residing in Pittsburgh, reflecting an 8.6% decrease since 2000. The racial makeup was 66.0% White, 25.8% Black or African American, 4.4% Asian and 2.3% mixed.
In 2010, Pittsburgh had 1,600 technology companies.
In 2010, Pittsburgh had 143,739 households. The population distribution was 19.9% under 18, 14.8% from 18 to 24, 28.6% from 25 to 44, 20.3% from 45 to 64, and 16.4% who were 65 or older. The median age was 36 years.
In 2010, UPMC officially adopted Hamot Medical Center in Erie, Pennsylvania.
In 2010, UPMC performed the first total forearm and hand transplant.
In 2010, poet Terrance Hayes, who earned his MFA at the University of Pittsburgh, won the National Book Award.
In 2010, the Pittsburgh Penguins moved into the PPG Paints Arena.
Between 2006 and 2011, the Pittsburgh metropolitan statistical area experienced over 10% appreciation in housing prices, the highest among the largest 25 metropolitan statistical areas in the United States.
In 2011, Pittsburgh became "Gotham City" during the filming of The Dark Knight Rises.
In 2011, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2011, Wiz Khalifa's hit song 'Black and Yellow' reached number one on the Billboard Hot 100.
In 2011, an analysis valued the annual benefits of Pittsburgh's urban forest between $10 and $13 million, based on contributions to aesthetics, energy use, and air quality.
In 2011, the Port of Pittsburgh ranked as the 20th-largest port in the United States with almost 34 million short tons of river cargo.
Since 2011, the Pittsburgh Dad series has showcased the Pittsburghese genre to a global YouTube audience.
Between 2012 and 2013 seasons, the University of Pittsburgh Panthers left the Big East for the ACC.
From 2012-14, Pittsburgh suburban courses hosted Senior Players Championships.
In 2012, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2012, The Lancet published a UPMC study showing two 9-year-old quadriplegics were able to move a robotic arm by thought, allowing them to pick up objects, shake hands, and even eat.
In 2012, per 100,000 persons stats were collected.
In 2012, the Pittsburgh Pirates ended their MLB record for most consecutive losing seasons.
In 2012, the UPMC Children's Hospital of Pittsburgh was featured in world news for its unique approaches to patient care. Also in 2012, the Pittsburgh Penguins announced a state of the art training facility with UPMC.
Since 2012, the Hot Mass after-hours electronic music dance party has been a key part of Pittsburgh's electronic music scene, known for its European nightclub vibe.
Between 2012 and 2013 seasons, the University of Pittsburgh Panthers left the Big East for the ACC.
In 2013, Pittsburgh was named the 3rd "most secure" big city by Farmers Insurance.
In 2013, Sperling's Best Places listed Pittsburgh as one of the "top 15 cities for baseball".
In 2013, UPMC announced its partnership with Nazarbayev University to help found its medical school.
In 2013, the Pittsburgh Pirates made a National League Division Series appearance.
On January 6, 2014, Bill Peduto was sworn in as mayor of Pittsburgh.
A study from 2014 to 2016 found that children near pollution sources in Pittsburgh had asthma rates nearly three times the national average, indicating the impact of air quality on health.
According to a 2014 study by the Pew Research Center, 78% of Pittsburgh's population identified as Christians, with 42% attending Protestant churches and 32% professing Catholic beliefs. 18% claimed no religious affiliation, while other religions made up about 4% of the population.
In 2014, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2014, poet Terrance Hayes, winner of the 2010 National Book Award, was named a MacArthur Foundation Fellow.
In 2015, Chatham University became fully coeducational.
In 2015, Pittsburgh was listed among the "eleven most livable cities in the world" by Metropolis magazine.
A study from 2014 to 2016 found that children near pollution sources in Pittsburgh had asthma rates nearly three times the national average, indicating the impact of air quality on health.
In 2016, the Pittsburgh Penguins won the Eastern Conference title and the Stanley Cup championship.
In 2016, the Pittsburgh Water and Sewer Authority (PWSA) faced criticism due to high lead levels in the city's drinking water, leading to increased concerns among residents.
From 2017 to 2023, Pittsburgh welcomed a series of major film and television productions significantly contributing to the local economy.
In 2017, a study by the Cohen Center for Modern Jewish Studies at Brandeis University estimated the Jewish population of Greater Pittsburgh was 49,200.
In 2017, the Allegheny County Sanitary Authority (ALCOSAN) proposed a $2 billion system upgrade to address issues with untreated sewage overflow into rivers.
In 2017, the Pittsburgh Penguins won the Eastern Conference title and the Stanley Cup championship.
As of 2018, much of Pittsburgh's population density was concentrated in the central, southern, and eastern areas. The city limits had a population density of 5,513 people per square mile, with North Oakland and Uptown Pittsburgh being the most densely populated parts. Outside of the city limits, Dormont and Mount Oliver were Pittsburgh's most densely-populated neighborhoods.
In 2018, Pittsburgh recorded its highest annual precipitation at 57.83 inches (1,469 mm).
In 2018, The Economist's Global Liveability Ranking placed Pittsburgh as the most livable city in the United States.
In 2018, the University of Pittsburgh Panthers football team appeared in the ACC Championship Game.
In 2018, the starting teacher salary offered to teachers with a BA was $46,920 and the maximum annual salary for a teacher with a master's degree was $95,254.
At the end of 2019, the Pittsburgh Bureau of Police reported 37 murders in the city that year.
By the 2019 American Community Survey, the median income for a household in Pittsburgh increased to $53,799, and for families, it was $68,922.
In 2019, Pittsburgh was deemed "Food City of the Year" by af&co, a San Francisco-based restaurant and hospitality consulting firm. Many restaurants were favorably mentioned.
In 2019, the EPA approved ALCOSAN's proposed $2 billion system upgrade to address untreated sewage overflow issues.
As of the 2020 census, Pittsburgh's population was 302,971. This makes it the second-most populous city in Pennsylvania and the 68th-most populous in the U.S. in 2020.
In November 2021, Ed Gainey was elected as the first African-American mayor of Pittsburgh.
From 2021 to 2024, data from the United States Environmental Protection Agency (EPA) showed that Pittsburgh's air quality was generally good or moderate.
In 2021, the University of Pittsburgh Panthers football team won the ACC Championship Game.
The American Lung Association's 2024 "State of the Air" report, covering data from 2020 to 2022, indicated that while Pittsburgh's air quality is poor, it is improving.
From 2017 to 2023, Pittsburgh welcomed a series of major film and television productions significantly contributing to the local economy.
In 2023, members of the Pittsburgh City Council approved an increase to the police budget by $6 million.
Since 2023, Summer Lee has been the Democrat representative of Pennsylvania's 12th congressional district.
In 2024, Anthrocon attracted over 17,000 visitors and has generated a cumulative economic impact of $53 million over 11 years. Additionally, the reality show Dance Moms is filmed at Pittsburgh's Abby Lee Dance Company.
In 2024, The American Lung Association's "State of the Air" report indicated Pittsburgh's air quality is improving, but still poor, ranking 26th for short-term particle pollution, 19th for year-round particle pollution, and earning a D grade for ozone pollution.
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