Philadelphia, or Philly, is the most populous city in Pennsylvania and the sixth-most populous in the United States, boasting a population of over 1.6 million as of 2020. It serves as the urban center of the Philadelphia metropolitan area, which is the ninth-largest in the nation in both metropolitan and combined statistical area measurements, with populations reaching 6.245 million and 7.366 million respectively.
In 1901, the Oakland Athletics baseball team, originally known as the Philadelphia Athletics, started playing in Philadelphia.
In 1902, the Brush Electric Light Company of Philadelphia was renamed Philadelphia Electric Company (PECO).
In 1905, the subway section of the Market–Frankford Line opened to the west of City Hall.
In 1908, the subway section of the Market–Frankford Line opened to the east of City Hall.
In 1909, the Fairmount Water Works was decommissioned as Philadelphia transitioned to modern sand filtration methods.
In 1910, a general strike shut down the entire city of Philadelphia.
In 1911, Philadelphia had nearly 4,000 electric trolleys running on 86 lines.
In August 1912, the first experimental radio license was issued in Philadelphia to St. Joseph's College.
In 1917, the City Council shrank from two houses to just one, following outrage over the election-year murder of a Philadelphia police officer.
On August 7, 1918, Philadelphia recorded its highest temperature ever at 106 °F (41 °C).
In July 1919, Philadelphia was one of more than 36 industrial cities nationally to experience a race riot during Red Summer in the post-World War I unrest.
In 1922, Philadelphia recorded its lowest annual rainfall at 29.31 inches (744 mm).
In 1922, the first commercial AM radio stations began broadcasting in Philadelphia: WIP (owned by Gimbels department store), WFIL (owned by Strawbridge & Clothier department store), WOO (owned by Wanamaker's department store), WCAU and WDAS.
In 1925, the Philadelphia Daily News was first published.
In 1928, the Broad Street Line opened in stages. The Broad Street Line runs north–south beneath Broad Street.
By 1930, the African-American population of Philadelphia increased to 219,559, largely stemming from the Great Migration from the South.
In 1932, Philadelphia voted for Republican Herbert Hoover, despite the Democratic surge after the Great Depression.
In 1932, the PSFS Building, the first modern International Style skyscraper in the United States, was constructed in Philadelphia. It was designed by George Howe and William Lescaze.
On February 9, 1934, Philadelphia recorded its lowest temperature ever at −11 °F (−24 °C).
In 1936, Franklin D. Roosevelt carried Philadelphia with over 60% of the vote.
In 1937, the Philadelphia Housing Authority (PHA) was established. It is now the nation's fourth-largest housing authority.
In 1938, the annual celebration of the Declaration of Independence was formalized as Independence Day, which is now one of the eleven designated U.S. federal holidays.
The Broad Street Line opened in stages from 1928 to 1938.
In 1939, W3XE, an experimental station owned by Philco, became the nation's first NBC affiliate. The station later became KYW-TV.
In 1940, non-Hispanic whites constituted 86.8% of the city's population.
In 1946, the Golden State Warriors basketball team started playing in Philadelphia.
In 1947, Southeastern Pennsylvania was assigned the 215 area code when the North American Numbering Plan of the Bell System went into effect.
In April 1949, the Pennsylvania General Assembly created the City Charter Commission, setting the stage for Philadelphia's Home Rule Charter.
In June 1949, a city ordinance also created the City Charter Commission.
Beginning in 1950, Philadelphia experienced a population decline that lasted until 2000, during which it lost approximately 25 percent of its residents.
In 1950, Philadelphia recorded a record high population of 2,071,605 residents.
In 1950, Philadelphia's population peaked at more than two million residents, after which it began to decline due to industrial restructuring and suburbanization.
In February 1951, the existing city council received a proposed draft of the Home Rule Charter.
In April 1951, the electors approved the Home Rule Charter in an election.
In November 1951, the first elections under the new Home Rule Charter were held.
In January 1952, the newly elected officials took office under the new Home Rule Charter.
For over seven decades, since 1952, every Philadelphia mayor has been a Democrat.
In 1952, WFIL, later renamed WPVI, premiered the television show Bandstand, which later became the nationally broadcast American Bandstand hosted by Dick Clark.
In 1952, all county functions were assumed by the city in Philadelphia.
In 1952, the teen dance party program called Bandstand premiered on local television, hosted by Bob Horn.
In 1954, La Salle won the championship of the NCAA Division I men's basketball tournament.
In 1954, the Oakland Athletics baseball team moved from Philadelphia.
In 1955, the Philadelphia Historical Commission was created to preserve the city's cultural and architectural history. The commission maintains the Philadelphia Register of Historic Places.
In 1957, Bandstand was renamed American Bandstand, when it began national syndication on ABC, hosted by Dick Clark.
In 1959, lobbying by the Artists Equity Association helped create the Percent for Art ordinance, which was the first of its kind for a U.S. city.
In 1962, the Golden State Warriors basketball team moved from Philadelphia.
In 1964, American Bandstand moved to Los Angeles after being produced in Philadelphia.
In 1964, Arlen Specter was assistant counsel on the Warren Commission.
From 1966, Arlen Specter served as the city's district attorney.
In 1966, Geno's Steaks was founded, facing its rival Pat's King of Steaks across the intersection of 9th Street and Passyunk Avenue in the Italian Market of South Philadelphia.
Since 1972, Fairmount Park and adjacent Wissahickon Valley Park have been listed as one entity on the National Register of Historic Places.
The 1972-73 winter season recorded only trace amounts of snowfall in Philadelphia.
In 1973, Philadelphia won a title in soccer in the now-defunct North American Soccer League.
Until 1974, Arlen Specter served as the city's district attorney.
In 1975, the City Tavern was rebuilt on the same site as part of Independence National Historical Park after being demolished in 1854 due to a fire. The original City Tavern had first opened in 1773.
In June 1976, Sister Cities Park was dedicated to commemorate Philadelphia's first two sister city relationships, with Tel Aviv and Florence.
In 1976, the long flight of steps to the Art Museum’s main entrance became famous after the film Rocky.
In 1980, the city's zoning code was established, which was later overhauled between 2007 and 2012.
From 1981, Arlen Specter served as a Republican Senator.
In 1984, the Chinatown Gate, crafted by artisans from Tianjin, was erected on 10th Street.
In 1984, the Department of Recreation's Mural Arts Program was created to beautify neighborhoods and provide an outlet for graffiti artists.
On July 13, 1985, John F. Kennedy Stadium was the American venue for the Live Aid concert.
In 1985, Villanova won the NCAA Division I men's basketball tournament.
In 1985, the MOVE Bombing occurred in the Cobbs Creek neighborhood, carried out by city helicopters, resulting in 11 deaths and the destruction of 61 homes.
In 1987, One Liberty Place was completed, surpassing City Hall as the tallest building in the city.
In 1987, Philadelphia Gas Works (PGW) came under city ownership.
In 1987, a decision permitted One Liberty Place to become the first building in city history to surpass the height of William Penn, a statue installed in 1894 atop City Hall.
According to The Pew Charitable Trusts, the city's foreign-born population doubled between 1990 and 2017.
In 1990, Philadelphia had a high number of homicides.
In 1990, Philadelphia recorded between 500 and 503 murders, resulting in a rate of 31.5 per 100,000 residents.
In 1991, Ronald D. Castille left office as District Attorney.
January 19, 1994, was the last time Philadelphia experienced a temperature at or below 0 °F (−18 °C), which is a rare occurrence.
In 1994, the geographic area covered by area code 215 was split nearly in half when area code 610 was created.
In January 1996, Philadelphia experienced its heaviest single-storm snowfall, with 30.7 inches (78 cm) recorded.
In 1997, overlay area code 267 was added to the 215 service area.
In 1999, Sam Katz ran as the Republican nominee in the mayoral race, losing to Democrat John Street.
In 1999, area code 484 was added to the 610 area.
According to The Pew Charitable Trusts, between 2000 and 2016 the foreign-born population increased by 69% in philadelphia.
By 2000, the city experienced the end of its population decline and began attracting service businesses and tourism.
Since 2000, Philadelphia saw fewer days of high particle pollution, decreasing from about 19 days per year to about 3, along with an approximate 30% reduction in annual levels of particle pollution.
In 2001, a plan to introduce a third overlay code to both service areas, area code 445 to 215 and area code 835 to 610, was delayed and later rescinded.
In 2001, the Philadelphia metropolitan area's Jewish population was estimated at 206,000, making it the sixth-largest in the U.S. at the time.
Since 2001, the city experienced a significant reduction in high ozone days, decreasing from nearly 50 days per year to fewer than 10.
In 2002, the number of murders in Philadelphia decreased to 288.
In 2003, Sam Katz ran as the Republican nominee in the mayoral race again, losing to Democrat John Street.
In 2004, during the city's championship drought, ESPN placed Philadelphia second on its list of "The Fifteen Most Tortured Sports Cities".
On July 2, 2005, the Live 8 concert attracted about 700,000 people to the Benjamin Franklin Parkway in Philadelphia.
In 2005, Philadelphia had a district graduation rate of 52%, with district-run schools scoring an average of 37.4% on math and 35.5% on reading.
In 2005, SEPTA reintroduced trolley service to the Girard Avenue Line, Route 15.
By 2006, the murder count in Philadelphia had increased to 406.
In 2006, Philadelphia's homicide rate of 27.7 per 100,000 people was the highest among the country's 10 most populous cities.
In 2006, Philadelphia's population dropped to a low of 1,488,710 residents before beginning to rise again.
In 2006, shooting incidents peaked at 1,857, and 85,498 major crimes were reported in Philadelphia.
In 2007, a joint effort began between former mayors John F. Street and Michael Nutter to overhaul much of the city's 1980 zoning code, a process that concluded in 2012.
In 2007, the Comcast Center surpassed One Liberty Place to become the city's tallest building.
In 2007, the number of murders in Philadelphia slightly decreased to 392.
Philadelphia began experiencing population growth in 2007, which has continued with incremental annual increases. This growth includes residents migrating from New York City seeking a lower cost of living.
In 2008, Democrat Barack Obama drew 83% of the city's vote in Philadelphia.
In 2008, Ronald D. Castille became the Chief Justice of the Pennsylvania Supreme Court.
In 2008, the Phillies won the World Series, defeating the Tampa Bay Rays.
During the winter of 2009-10, Philadelphia experienced a seasonal snowfall accumulation of 78.7 inches (200 cm).
From 2009, Arlen Specter served as a Democrat Senator.
Since 2009, the Philadelphia Daily News has been published as an edition of The Philadelphia Inquirer.
On July 24, 2010, Philadelphia recorded a record high minimum temperature of 83 °F (28 °C).
As a result of the declining population in the city and state, Philadelphia had three congressional districts based on the 2010 census apportionment.
As of 2010, 79.12% of Philadelphia residents age 5 and older spoke English at home as a primary language.
In 2010, Arlen Specter lost the Democratic party's primary election.
In 2010, K-12 enrollment in Philadelphia district-run schools was 156,211 students, while enrollment in charter schools was 33,995 students.
In 2010, Philadelphia Media Holdings, then-owner of the Inquirer and Daily News, declared bankruptcy.
In January 2011, Arlen Specter left office as Pennsylvania's Senator.
On July 23, 2011, Philadelphia recorded a record high minimum temperature of 83 °F (28 °C).
In 2011, GQ magazine named Eagles and Phillies fans the nation's worst professional sports fans, describing them as the "Meanest Fans in America".
In 2011, Philadelphia recorded its highest annual rainfall at 64.33 inches (1,634 mm).
In 2011, Philadelphia's schools reached their peak scores with 59.0% on math and 52.3% on reading.
In 2012, Philadelphia had the fourth-highest homicide rate among the country's most populous cities.
In 2012, Sister Cities Park was redesigned and reopened, featuring an interactive fountain, café, visitor center, children's play area, outdoor garden, boat pond, and a pavilion.
In 2012, The Philadelphia Inquirer and Philadelphia Daily News were sold to Interstate General Media after two years of financial struggle.
In 2012, the American Ultimate Disc League (AUDL) was founded and the Philadelphia Spinners were one of the original eight teams.
The zoning changes, intended to rectify incorrect zoning maps, were completed in 2012 as part of a joint effort between former mayors John F. Street and Michael Nutter.
On July 28, 2013, Philadelphia International Airport recorded the most rain in one day, with 8.02 inches (204 mm) of rainfall.
From 2013 to 2018, marijuana arrests in Philadelphia dropped by more than 85%.
In 2013, Philadelphia saw 246 murders, a decrease of nearly 40% since 2006.
In 2013, The Philadelphia Inquirer and Philadelphia Daily News had a combined daily circulation of 306,831 and a Sunday circulation of 477,313, the 18th-largest in the country. Their website, Philly.com, was ranked 13th in popularity among online U.S. newspapers.
In 2013, the city of Philadelphia closed 24 of its public schools due to a consistent drop in enrollment.
The data from 2013 to 2015 was analyzed in the American Lung Association's 2017 State of the Air report.
As of 2014, Philadelphia's total park space, including municipal, state, and federal parks, amounts to 11,211 acres (17.5 sq mi).
As of 2014, the Philadelphia School District was the eighth-largest in the nation with 142,266 students in 218 traditional public schools and 86 charter schools.
By 2014, shooting incidents in Philadelphia had declined nearly 44 percent to 1,047. Major crimes had also fallen 11 percent to 68,815, and violent crimes decreased 14 percent to 15,771.
During the 2014 school year, the city of Philadelphia spent an average of $12,570 per pupil.
In 2014, Philadelphia decriminalized the possession of less than 30 grams of marijuana or eight grams of hashish, treating it as a civil infraction punishable by a $25 ticket.
In 2014, Philadelphia had 248 homicides and a homicide rate of 16 per 100,000 residents, making it the sixth-highest city in the country.
In 2014, Philadelphia's district graduation rate increased to 65%, and the scores on the state's standardized test dropped significantly to 45.2% on math and 42.0% on reading.
In 2014, Ronald D. Castille left his position as the Chief Justice of the Pennsylvania Supreme Court.
In 2014, each of the seven police districts recorded more than a thousand violent crimes.
In 2014, only four of Philadelphia's public high schools, including charter schools, performed above the national average on the SAT (1497 out of 2400): Masterman, Central, Girard Academic Music Program, and MaST Community Charter School.
In 2014, the Philadelphia City Council refused to conduct hearings on a $1.86 billion sale of Philadelphia Gas Works (PGW), leading to the prospective buyer terminating its offer.
In a 2014 study by the Pew Research Center, 68% of the population of the city identified themselves as Christian.
As of 2015, Center City had an estimated 183,240 residents, making it the second-most populated downtown area in the United States, after Midtown Manhattan in New York City.
In 2015, Hospitals, universities, and higher education research institutions in Philadelphia's four congressional districts received more than $252 million in National Institutes of Health grants.
In 2015, K-12 enrollment in Philadelphia district-run schools was 130,104 students, while enrollment in charter schools was 62,358 students.
In 2015, Philadelphia's homicide rate rose to 280.
In 2015, over 35,000 Chinese Americans lived in Philadelphia.
In a 2015 report by Pew Charitable Trusts, the police districts with the highest rates of violent crime were identified.
The data from 2013 to 2015 was analyzed in the American Lung Association's 2017 State of the Air report.
In December 2016, the Major League Ultimate (MLU) was suspended indefinitely by its investors.
According to The Pew Charitable Trusts, between 2000 and 2016 the foreign-born population increased by 69% in philadelphia.
In 2016, Democrat Hillary Clinton won 82% of the vote in Philadelphia.
In 2016, Jim Kenney began his term as mayor of Philadelphia.
In 2016, Philadelphia attracted 42 million domestic tourists, resulting in $6.8 billion in spending and contributing $11 billion in economic impact to the city and surrounding Pennsylvania counties.
In 2016, Villanova won the NCAA Division I men's basketball tournament.
In 2016, the Independence National Historical Park received over 5 million visitors, and the city welcomed 42 million domestic tourists who spent $6.8 billion.
In 2016, the homicide rate in Philadelphia fell slightly to 277.
As of December 2017, the ten highest-rated stations in Philadelphia were adult contemporary WBEB-FM (101.1), sports talk WIP-FM (94.1), classic rock WMGK-FM (102.9), urban adult contemporary WDAS-FM (105.3), classic hits WOGL-FM (98.1), album-oriented rock WMMR-FM (93.3), country music WXTU-FM (92.5), all-news KYW-AM (1060), talk radio WHYY-FM (90.9), and urban adult contemporary WRNB-FM (100.3).
According to The Pew Charitable Trusts, the city's foreign-born population doubled between 1990 and 2017.
Between 2006 and 2017, Philadelphia added 92,153 residents; the U.S. Census Bureau estimated the racial composition.
In 2017, Philadelphia's 30th Street Station had 4.4 million passengers, making it the third-busiest station in the country after New York City's Pennsylvania Station and Washington's Union Station.
In 2017, Philadelphia's homicide rate rose again to 317.
In 2017, the American Lung Association's State of the Air report gave Philadelphia County an ozone grade of F and a 24-hour particle pollution rating of D.
In 2017, the Bureau of Economic Analysis calculated Philadelphia's gross metropolitan product (GMP) at $445 billion.
In 2017, the Eagles won their first Super Bowl by defeating the New England Patriots in Super Bowl LII.
In 2017, the Port of Philadelphia experienced the highest percentage growth by tonnage loaded among major U.S. seaports.
Area code 445 was implemented as an overlay for area codes 215 and 267 starting on February 3, 2018.
As of 2018, Larry Krasner is the city's District Attorney.
As of 2018, Philadelphia's 30th Street Station is Amtrak's third-busiest station in the country, after New York City and Washington.
As of 2018, the FCC lists 28 FM and 11 AM stations for Philadelphia.
As of 2018, the Philadelphia Phoenix continue to play in the American Ultimate Disc League (AUDL).
From 2013 to 2018, marijuana arrests in Philadelphia dropped by more than 85%.
In 2018, Villanova won the NCAA Division I men's basketball tournament.
In 2018, the Comcast Technology Center was completed, reaching a height of 1,121 ft (342 m), making it the tallest building in the United States outside of Manhattan and Chicago.
The Port of Philadelphia doubled its shipping capacity to accommodate super-sized post-Panamax shipping vessels since 2018.
In May 2019, former U.S. Vice President Joe Biden chose Philadelphia to be his 2020 U.S. presidential campaign headquarters.
In May 2019, the Walnut Street Theatre announced a major expansion to begin in 2020.
July 21, 2019, marked the last time Philadelphia experienced a temperature at or above 100 °F (38 °C), a relatively uncommon occurrence.
As of 2019, Philadelphia population increased by 1.2% since the 2020 census estimate.
As of the 2020 U.S. Census, Philadelphia had a population of 1,603,797 people.
In 2020, Joe Biden's U.S. presidential campaign headquarters was located in Philadelphia.
In 2020, homicides in Philadelphia increased dramatically, reaching 499.
In 2020, the population of Philadelphia was recorded at 1,603,797 according to the census, making it the sixth-most populous city in the United States.
As of 2021, the Philadelphia metropolitan area is estimated to produce a gross metropolitan product (GMP) of US$479 billion.
In 2021, Philadelphia surpassed the 1990 "record" with the 501st murder occurring on November 27. The city ended the year with 562 murders, an all-time record.
In 2022, South American migrants were being transported by bus from Texas to Philadelphia.
In 2022, the number of homicides in Philadelphia dropped to 514.
In November 2023, Cherelle Parker won the election to become the mayor of Philadelphia.
As of 2023, Philadelphia International Airport is the 21st-busiest airport in the nation with over 13.6 million passengers.
As of 2023, the Philadelphia media market is the fifth-largest in North America with over 7.8 million viewers.
As of 2023, the Philadelphia metropolitan area had a gross metropolitan product of US$557.6 billion. The city's 30th Street Station also served over 4.1 million passengers.
In 2023, homicides decreased significantly further to 410 in Philadelphia.
In January 2024, Jim Kenney's term as mayor ended.
As of April 2, 2024, Open Wards Philadelphia was archived at the Wayback Machine.
Since September 2024, Philadelphia is the nation's largest television market where at least one of the six English networks are shown at a station not owned by a particular network's associated parent company.
As of 2024, the Delaware Valley ranks as one of the Big Five U.S. venture capital hubs.
In 2024, the Eagles won their second Super Bowl, defeating the Kansas City Chiefs in Super Bowl LIX.
Philadelphia will be one of the eleven US host cities for the 2026 FIFA World Cup.
The city forecasts an additional 100,000 residents and 40,000 jobs will be added by 2035, as part of the Philadelphia2035 physical development plan.
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