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135-720: Born in Philadelphia , Pennsylvania , to an immigrant Polish tailor, Piasecki worked for autogyro manufacturers while still attending Overbrook High School , then studied mechanical engineering at the University of Pennsylvania before graduating with a bachelor's degree from New York University . He was employed by the Platt-LePage Aircraft Company as a control engineer on their XR-1 twin-rotor project. In 1940, he formed PV Engineering Forum with former Pennsylvania classmate Harold Venzie. He built

270-743: A 24-hour particle pollution rating of D in the American Lung Association 's 2017 State of the Air report, which analyzed data from 2013 to 2015. The city was ranked 22nd for ozone, 20th for short-term particle pollution, and 11th for year-round particle pollution. According to the same report, the city experienced a significant reduction in high ozone days since 2001—from nearly 50 days per year to fewer than 10—along with fewer days of high particle pollution since 2000—from about 19 days per year to about 3—and an approximate 30% reduction in annual levels of particle pollution since 2000. Five of

405-495: A bachelor's degree or higher. 23.9% spoke a language other than English at home, the most common of which was Spanish (10.8%). 15.0% of the populations foreign born, roughly half of whom are naturalized U.S. citizens. 3.7% of the population are veterans. The median household income was $ 52,889 and 22.8% of the population lived in poverty. 49.5% of the population drove alone to work, while 23.2% used public transit, 8.2% carpooled, 7.9% walked, and 7.0% worked from home. The average commute

540-403: A budget of $ 371 million. The Philadelphia Parking Authority is responsible for ensuring adequate parking for city residents, businesses, and visitors. Philadelphia's architectural history dates back to colonial times and includes a wide range of styles. The earliest structures were constructed with logs , but brick structures were common by 1700. During the 18th century, the cityscape

675-474: A city on the Delaware River to serve as a port and place for government. Hoping that Philadelphia would become more like an English rural town instead of a city, Penn laid out roads on a grid plan to keep houses and businesses spread far apart with areas for gardens and orchards . The city's inhabitants did not follow Penn's plans, however, and instead crowded the present-day Port of Philadelphia on

810-637: A foreign alliance and finalizing the Articles of Confederation . John Adams gave a speech in reply to Dickinson, restating the case for an immediate declaration. A vote was taken after a long day of speeches, each colony casting a single vote, as always. The delegation for each colony numbered from two to seven members, and each delegation voted among themselves to determine the colony's vote. Pennsylvania and South Carolina voted against declaring independence. The New York delegation abstained, lacking permission to vote for independence. Delaware cast no vote because

945-620: A formal declaration would still have to be made. On the same day that Congress passed Adams' preamble, the Virginia Convention set the stage for a formal Congressional declaration of independence. On May 15, the Convention instructed Virginia's congressional delegation "to propose to that respectable body to declare the United Colonies free and independent States, absolved from all allegiance to, or dependence upon,

1080-668: A formal response. Congress organized a boycott of British goods and petitioned the king for repeal of the acts. These measures were unsuccessful, however, since King George and the Prime Minister, Lord North , were determined to enforce parliamentary supremacy over the Thirteen Colonies. In November 1774, King George, in a letter to North, wrote, "blows must decide whether they are to be subject to this country or independent". Most colonists still hoped for reconciliation with Great Britain, even after fighting began in

1215-497: A grid pattern between the Delaware and Schuylkill rivers that is aligned with their courses. The original city plan was designed to allow for easy travel and to keep residences separated by open space that would help prevent the spread of fire. In keeping with the idea of a "Greene Countrie Towne", and inspired by the many types of trees that grew in the region, Penn named many of the east–west streets for local trees. Penn planned

1350-716: A growth in its population in 2007, which continued with incremental annual increases through the present. A migration pattern has been established from New York City to Philadelphia by residents opting for a large city with relative proximity and a lower cost of living . Philadelphia's geographic center is about 40° 0′ 34″ north latitude and 75° 8′ 0″ west longitude. The 40th parallel north passes through neighborhoods in Northeast Philadelphia , North Philadelphia , and West Philadelphia including Fairmount Park . The city encompasses 142.71 square miles (369.62 km ), of which 134.18 square miles (347.52 km )

1485-631: A joint effort between former mayors John F. Street and Michael Nutter . The zoning changes were intended to rectify incorrect zoning maps to facilitate future community development, as the city forecasts an additional 100,000 residents and 40,000 jobs will be added by 2035. The Philadelphia Housing Authority (PHA) is the largest landlord in Pennsylvania. Established in 1937, the PHA is the nation's fourth-largest housing authority, serving about 81,000 people with affordable housing, while employing 1,400 on

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1620-610: A moderately sunny climate with an average of 2,498 hours of sunshine annually. The percentage of sunshine ranges from 47% in December to 61% in June, July, and August. The January daily average temperature is 33.7 °F (0.9 °C). The temperature frequently rises to 50 °F (10 °C) during thaws. July averages 78.7 °F (25.9 °C). Heat waves accompanied by high humidity and heat indices are frequent, with highs reaching or exceeding 90 °F (32 °C) on 30 days of

1755-540: A much-needed military victory in the Battle of Trenton against a Hessian military garrison at Trenton . Common Sense was sold and distributed widely and read aloud at taverns and meeting places. In proportion to the population of the colonies at that time (2.5 million), it had the largest sale and circulation of any book published in American history. As of 2006, it remains the all-time best-selling American title and

1890-481: A new status of interdependence: the United States was now a sovereign nation entitled to the privileges and responsibilities that came with that status. America thus became a member of the international community, which meant becoming a maker of treaties and alliances, a military ally in diplomacy, and a partner in foreign trade on a more equal basis." The declaration is not divided into formal sections; but it

2025-754: A series of measures to increase revenue from the colonies, such as the Stamp Act of 1765 and the Townshend Acts of 1767. Parliament believed that these acts were a legitimate means of having the colonies pay their fair share of the costs to keep them in the British Empire . Many colonists, however, had developed a different perspective of the empire. The colonies were not directly represented in Parliament, and colonists argued that Parliament had no right to levy taxes upon them. This tax dispute

2160-704: A single-person, single-rotor helicopter designated the PV-2 and flew it on April 11, 1943. This helicopter impressed the United States Navy sufficiently to win Piasecki a development contract. The name PV Engineering was changed to Piasecki Helicopter Corporation in 1946. After a boardroom dispute, Piasecki was forced out of Piasecki Helicopter in 1955, and formed the Piasecki Aircraft Company. At Piasecki Aircraft, he participated in

2295-815: A time, row houses built elsewhere in the United States were known as "Philadelphia rows". A variety of row houses are found throughout the city, from Federal-style continuous blocks in Old City and Society Hill to Victorian-style homes in North Philadelphia to twin row houses in West Philadelphia . While newer homes have been built recently, much of the housing dates to the 18th, 19th, and early 20th centuries, which has created problems such as urban decay and vacant lots. Some neighborhoods, including Northern Liberties and Society Hill, have been rehabilitated through gentrification . As of 2014 ,

2430-667: A topic few had dared to discuss. As Common Sense was circulated throughout the Thirteen Colonies , public support for independence from Great Britain steadily increased. After reading it, Washington ordered that it be read by his Continental Army troops, who were demoralized following recent military defeats. A week later, Washington led the crossing of the Delaware in one of the Revolutionary War 's most complex and daring military campaigns, resulting in

2565-657: A town in Finland with a Swedish majority. In 1655, a Dutch military campaign led by New Netherland Director-General Peter Stuyvesant took control of the Swedish colony, ending its claim to independence. The Swedish and Finnish people settlers continued to have their own militia , religion, and court, and to enjoy substantial autonomy under the Dutch. An English fleet captured the New Netherland colony in 1664, though

2700-559: A week later by the New York Provincial Congress . The resolution of independence was adopted with twelve affirmative votes and one abstention, and the colonies formally severed political ties with Great Britain. John Adams wrote to his wife on the following day and predicted that July 2 would become a great American holiday He thought that the vote for independence would be commemorated; he did not foresee that Americans would instead celebrate Independence Day on

2835-621: Is 31 minutes. United States Declaration of Independence The Declaration of Independence , formally titled The unanimous Declaration of the thirteen united States of America in both the engrossed version and the original printing, is the founding document of the United States . On July 4, 1776, it was adopted unanimously by the 56 delegates to the Second Continental Congress , who convened at Pennsylvania State House, later renamed Independence Hall , in

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2970-466: Is highly variable. Some winters have only light snow while others include major snowstorms. The normal seasonal snowfall averages 22.4 in (57 cm), with rare snowfalls in November or April, and rarely any sustained snow cover. Seasonal snowfall accumulation has ranged from trace amounts in 1972–73, to 78.7 inches (200 cm) in the winter of 2009–10. The city's heaviest single-storm snowfall

3105-492: Is home to five Fortune 500 corporate headquarters. Metropolitan Philadelphia ranks as one of the Big Five U.S. venture capital hubs, facilitated by its geographic proximity to both the entrepreneurial and financial ecosystems of New York City and to the federal regulatory environment of Washington, D.C. Greater Philadelphia is also a biotechnology hub. The Philadelphia Stock Exchange , owned by Nasdaq since 2008,

3240-665: Is land and 8.53 square miles (22.09 km ), or 6%, is water. Natural bodies of water include the Delaware and Schuylkill rivers, lakes in Franklin Delano Roosevelt Park , and Cobbs , Wissahickon , and Pennypack creeks. The largest artificial body of water is East Park Reservoir in Fairmount Park . The lowest point is sea level and the highest point is in Chestnut Hill , about 446 feet (136 m) above sea level on Summit Street near

3375-536: Is most likely inauthentic, the Mecklenburg Declaration of Independence , allegedly adopted in May 1775 (a full year before other local declarations). Some colonies held back from endorsing independence. Resistance was centered in the middle colonies of New York, New Jersey, Maryland, Pennsylvania, and Delaware. Advocates of independence saw Pennsylvania as the key; if that colony could be converted to

3510-408: Is not easily conquered; yet we have this consolation with us, that the harder the conflict, the more glorious the triumph. Common Sense made a persuasive, impassioned case for independence, which had not been given serious consideration in the colonies. Paine linked independence with Protestant beliefs, as a means to present a distinctly American political identity, and he initiated open debate on

3645-519: Is now President and CEO of Piasecki Aircraft. His son Fred W. Piasecki is Chairman of the Board and Chief Technology Officer of Piasecki Aircraft. His daughter Nicole Piasecki was the vice president and general manager of Propulsion Systems for Boeing Commercial Airplanes . Piasecki died at his home on February 11, 2008, of a heart attack after a series of strokes . He was 88. Philadelphia Philadelphia , colloquially referred to as Philly ,

3780-580: Is often discussed as consisting of five parts: introduction , preamble , indictment of King George III, denunciation of the British people, and conclusion . Asserts as a matter of Natural Law the ability of a people to assume political independence; acknowledges that the grounds for such independence must be reasonable, and therefore explicable, and ought to be explained. "When in the Course of human events, it becomes necessary for one people to dissolve

3915-501: Is often ranked as the nation's best city for professional sports fans. The city has a culturally and philanthropically active LGBTQ+ community . Philadelphia also has played an immensely influential historic and ongoing role in the development and evolution of American music, especially R&B , soul , and rock . As of 2022 , the Philadelphia metropolitan area had a gross metropolitan product of US$ 518.5 billion and

4050-598: Is one of the largest contiguous urban park areas in the U.S. The two parks, along with the Colonial Revival , Georgian and Federal -style mansions in them, have been listed as one entity on the National Register of Historic Places since 1972. Within the Köppen climate classification , Philadelphia falls under the northern periphery of the humid subtropical climate zone (Köppen Cfa ). Within

4185-793: Is preserved at the Library of Congress in Washington, D.C. , complete with changes made by Adams and Franklin, and Jefferson's notes of changes made by Congress. The best-known version of the Declaration is the signed copy displayed at the National Archives in Washington, D.C., which is popularly regarded as the official document; this copy, engrossed by Timothy Matlack , was ordered by Congress on July 19, and signed primarily on August 2, 1776. On November 19, 1863, following

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4320-484: Is some uncertainty about how the drafting process proceeded; contradictory accounts were written many years later by Jefferson and Adams, too many years to be regarded as entirely reliable, although their accounts are frequently cited. What is certain is that the committee discussed the general outline which the document should follow and decided that Jefferson would write the first draft. The committee in general, and Jefferson in particular, thought that Adams should write

4455-569: Is still in print today. While some colonists still hoped for reconciliation, public support for independence strengthened considerably in early 1776. In February 1776, colonists learned of Parliament's passage of the Prohibitory Act , which established a blockade of American ports and declared American ships to be enemy vessels. John Adams , a strong supporter of independence, believed that Parliament had effectively declared American independence before Congress had been able to. Adams labeled

4590-540: Is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States , with a population of 1,603,797 in the 2020 census . The city is the urban core of the larger Delaware Valley , also known as the Philadelphia metropolitan area, the nation's eighth-largest metropolitan area and seventh-largest combined statistical area with 6.245 million residents and 7.366 million residents, respectively. Philadelphia has played an extensive role in United States history . The city

4725-433: Is the nation's oldest stock exchange and a global leader in options trading. 30th Street Station , the city's primary rail station, is the third-busiest Amtrak hub in the nation, and the city's multimodal transportation and logistics infrastructure also includes Philadelphia International Airport , a major transatlantic gateway and transcontinental hub; the rapidly-growing PhilaPort seaport ; and Interstate 95 ,

4860-456: The 2020 U.S. Census , there were 1,603,797 people residing in Philadelphia, representing a 1.2% increase from the 2019 census estimate. The racial composition of the city was 39.3% Black alone (42.0% Black alone or in combination), 36.3% White alone (41.9% White alone or in combination), 8.7% Asian alone, 0.4% American Indian and Alaska Native alone, 8.7% some other race, and 6.9% multiracial. 14.9% of residents were Hispanic or Latino. 34.8% had

4995-537: The American Revolutionary War at Lexington and Concord in April 1775. The Second Continental Congress convened at Pennsylvania State House, later renamed Independence Hall , in Philadelphia in May 1775. Some delegates supported eventual independence for the colonies, but none had yet declared it publicly, which was an act of treason punishable by death under the laws of the British monarchy at

5130-736: The Battle of Brandywine in Chadds Ford Township , on September 11, 1777, during the Philadelphia campaign , the revolutionary capital of Philadelphia was defenseless and the city prepared for what was perceived to be an inevitable British attack. Because bells could easily be recast into munitions, the Liberty Bell , then known as the Pennsylvania State Bell, and bells from two Philadelphia churches, Christ Church and St. Peter's Church , were hastily taken down and transported by heavily guarded wagon train out of

5265-671: The Battle of Gettysburg , the bloodiest battle of the American Civil War , Abraham Lincoln made the Declaration the centerpiece of his Gettysburg Address , a brief but powerful and enduring 271-word statement dedicating what became Gettysburg National Cemetery . The Declaration of Independence has proven an influential and globally impactful statement on human rights, particularly its second sentence: "We hold these truths to be self-evident, that all men are created equal , that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and

5400-611: The Boston Tea Party in 1773. Anticipating the arrangement of the British Commonwealth , by 1774 American writers such as Samuel Adams , James Wilson , and Thomas Jefferson argued that Parliament was the legislature of Great Britain only, and that the colonies, which had their own legislatures, were connected to the rest of the empire only through their allegiance to the Crown. In 1774, Parliament passed

5535-564: The British Army , which was then the world's most powerful military force. Since the Declaration's July 4, 1776, adoption, its signing has been cited globally and repeatedly by various peoples of the world seeking independence and liberty. It also has been, since its adoption, the basis for annual celebration by Americans; in 1938, this celebration of the Declaration was formalized as Independence Day , one of only eleven designated U.S. federal holidays . After George Washington 's defeat at

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5670-825: The Coercive Acts , known as the Intolerable Acts in the colonies. This was intended to punish the colonists for the Gaspee Affair of 1772 and the Boston Tea Party of 1773. Many colonists considered the Coercive Acts to be in violation of the British Constitution and a threat to the liberties of all of British America . In September 1774, the First Continental Congress convened in Philadelphia to coordinate

5805-700: The Committee of Five , including John Adams , Benjamin Franklin , Thomas Jefferson , Robert R. Livingston , and Roger Sherman , with authoring the Declaration. Adams, a leading proponent of independence, persuaded the Committee of Five to charge Jefferson with writing the document's original draft, which the Second Continental Congress then edited. Jefferson largely wrote the Declaration in isolation between June 11 and June 28, 1776, from

5940-614: The Delaware River watershed , western Long Island , and the Lower Hudson Valley . Most Lenape were pushed out of the region during the 18th century by expanding European colonies, exacerbated by losses from intertribal conflicts. Lenape communities were weakened by newly introduced diseases, mainly smallpox , and conflict with Europeans. The Iroquois occasionally fought the Lenape. Surviving Lenape moved west into

6075-684: The Eastern Mediterranean during the Greek and Roman periods, including modern Alaşehir , mentioned as the site of an early Christian congregation in the Book of Revelation . As a Quaker , Penn had experienced religious persecution and wanted his colony to be a place where anyone could worship freely. This tolerance, which exceeded that of other colonies, led to better relations with the local native tribes and fostered Philadelphia's rapid growth into America's most important city. Penn planned

6210-583: The Great Migration from the South . By the 20th century, Philadelphia had an entrenched Republican political machine and a complacent population. In 1910, a general strike shut down the entire city. In 1917, following outrage over the election-year murder of a Philadelphia police officer, led to the shrinking of the City Council from two houses to just one. In July 1919, Philadelphia

6345-535: The Liberty Bell , and hosting the Second Continental Congress during which the nation's 56 founders formed the Continental Army and elected George Washington as its commander in 1775, and unanimously adopted the Declaration of Independence on July 4, 1776. For nine months, from September 1777 to June 1778, the city fell under British occupation during the war's Philadelphia campaign . In 1787,

6480-503: The Second Continental Congress , which adopted the Declaration of Independence in what was then called the Pennsylvania State House and was later renamed Independence Hall. Historian Joseph Ellis , in 2007, described the Declaration of Independence, written predominantly by Thomas Jefferson , as "the most potent and consequential words in American history," and its adoption represented a declaration of war against

6615-480: The Trewartha climate classification , Philadelphia has a temperate maritime climate ( Do ) limited to the north by the continental climate ( Dc ). Summers are typically hot and muggy. Fall and spring are generally mild, and winter is moderately cold. The plant life hardiness zones are 7a and 7b, reflecting an average annual extreme minimum temperature between 0 and 10 °F (−18 and −12 °C). Snowfall

6750-611: The U.S. Constitution was ratified in Philadelphia at the Philadelphia Convention . Philadelphia remained the nation's largest city until 1790, and it served as the nation's first capital from May 10, 1775, until December 12, 1776, and on four subsequent occasions until 1800, when construction of the new national capital in Washington, D.C. was completed. Philadelphia maintains extensive contemporary influence in business and industry , culture , sports , and music . With 17 four-year universities and colleges in

6885-483: The colonial era capital of Philadelphia . The 56 delegates who signed the Declaration of Independence came to be known as the nation's Founding Fathers . The Declaration explains to the world why the Thirteen Colonies regarded themselves as independent sovereign states no longer subject to British colonial rule. The Declaration has since become one of the most circulated, reprinted, and influential documents in world history. The Second Continental Congress charged

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7020-515: The exigencies of their affairs" to adopt new governments. The resolution passed unanimously, and was even supported by Pennsylvania's John Dickinson , the leader of the anti-independence faction in Congress, who believed that it did not apply to his colony. This Day the Congress has passed the most important Resolution, that ever was taken in America. —John Adams, May 15, 1776 As

7155-449: The slave trade . Jefferson later wrote in his autobiography that Northern states were also supportive towards the clauses removal, "for though their people had very few slaves themselves, yet they had been pretty considerable carriers of them to others." Jefferson wrote that Congress had "mangled" his draft version, but the Declaration that was finally produced was "the majestic document that inspired both contemporaries and posterity", in

7290-448: The world's 54th-largest urban park . Philadelphia is known for its arts, culture , cuisine , and colonial and Revolutionary-era history; in 2016, it attracted 42 million domestic tourists who spent $ 6.8 billion, representing $ 11 billion in economic impact to the city and its surrounding Pennsylvania counties. With five professional sports teams and one of the nation's most loyal and passionate fan bases, Philadelphia

7425-490: The 1980s. Historic areas such as Old City and Society Hill were renovated during the reformist mayoral era of the 1950s through the 1980s, making both areas among the most desirable Center City neighborhoods. Immigrants from around the world began to enter the U.S. through Philadelphia as their gateway, leading to a reversal of the city's population decline between 1950 and 2000, during which it lost about 25 percent of its residents. Philadelphia eventually began experiencing

7560-597: The 2 square miles (5.2 km ) of Center City to the roughly 134 square miles (350 km ) of Philadelphia County . In the latter half of the 19th century and leading into the 20th century, immigrants from Russia, Eastern Europe, and Italy, and African Americans from the southern U.S. settled in the city. Philadelphia was represented by the Washington Grays in the American Civil War . The African-American population of Philadelphia increased from 31,699 to 219,559 between 1880 and 1930, largely stemming from

7695-595: The British Constitution recognized certain fundamental rights that no government could violate, including Parliament. After the Townshend Acts, some essayists questioned whether Parliament had any legitimate jurisdiction in the colonies. As a result of this ideological shift in the colonies, many colonialists participated in tax protests against the Royal authority such as the Pine Tree Riot in 1772 and

7830-418: The British Crown, and that all political connection between them and the State of Great Britain is, and ought to be, totally dissolved." Lee's resolution met with resistance in the ensuing debate. Opponents of the resolution conceded that reconciliation was unlikely with Great Britain, while arguing that declaring independence was premature, and that securing foreign aid should take priority. Advocates of

7965-459: The Congressional instructions revised. For Congress to declare independence, a majority of delegations would need authorization to vote for it, and at least one colonial government would need to specifically instruct its delegation to propose a declaration of independence in Congress. Between April and July 1776, a "complex political war" was waged to bring this about. In January 1776, Thomas Paine 's pamphlet Common Sense , which described

8100-416: The Continental Congress adopted Adams' May 15 preamble, and had sent to the Annapolis Convention for instructions. On May 20, the Annapolis Convention rejected Adams' preamble, instructing its delegates to remain against independence. But Samuel Chase went to Maryland and, thanks to local resolutions in favor of independence, was able to get the Annapolis Convention to change its mind on June 28. Only

8235-543: The Crown or Parliament of Great Britain". In accordance with those instructions, Richard Henry Lee of Virginia presented a three-part resolution to Congress on June 7. The motion was seconded by John Adams, calling on Congress to declare independence, form foreign alliances, and prepare a plan of colonial confederation. The part of the resolution relating to declaring independence read: "Resolved, that these United Colonies are, and of right ought to be, free and independent States, that they are absolved from all allegiance to

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8370-479: The Declaration and the final official engrossed copy. The word "unanimous" was inserted as a result of a Congressional resolution passed on July 19, 1776: "Resolved, That the Declaration passed on the 4th, be fairly engrossed on parchment, with the title and stile of 'The unanimous declaration of the thirteen United States of America,' and that the same, when engrossed, be signed by every member of Congress." Historian George Athan Billias says: "Independence amounted to

8505-586: The Declaration to be the foundation of his political philosophy and argued that it is a statement of principles through which the United States Constitution should be interpreted. The 56 delegates who signed the Declaration represented each of the Thirteen Colonies : New Hampshire , Massachusetts Bay , Rhode Island and Providence Plantations , Connecticut , New York , New Jersey , Pennsylvania , Maryland , Delaware , Virginia , North Carolina , South Carolina , and Georgia . The Declaration of Independence inspired many similar documents in other countries,

8640-400: The Delaware River and subdivided and resold their lots. Before Penn left Philadelphia for the final time, he issued the Charter of 1701 establishing it as a city. Though poor at first, Philadelphia became an important trading center with tolerable living conditions by the 1750s. Benjamin Franklin , a leading citizen, helped improve city services and founded new ones that were among the first in

8775-440: The God that made me, I will cease to exist before I yield to a connection on such terms as the British Parliament propose; and in this, I think I speak the sentiments of America. By the time the Declaration of Independence was adopted in July 1776, the Thirteen Colonies and Great Britain had been at war for more than a year. Relations had been deteriorating between the colonies and the mother country since 1763. Parliament enacted

8910-492: The New York delegates were unable to get revised instructions. When Congress had been considering the resolution of independence on June 8, the New York Provincial Congress told the delegates to wait. But on June 30, the Provincial Congress evacuated New York as British forces approached, and would not convene again until July 10. This meant that New York's delegates would not be authorized to declare independence until after Congress had made its decision. Political maneuvering

9045-576: The Prohibitory Act the "Act of Independency", calling it "a compleat Dismemberment of the British Empire". Support for declaring independence grew even more when it was confirmed that King George had hired German mercenaries to use against his American subjects. In the campaign to revise Congressional instructions, many Americans formally expressed their support for separation from Great Britain in what were effectively state and local declarations of independence. Historian Pauline Maier identifies more than ninety such declarations that were issued throughout

9180-426: The Representatives of the United States of America, in General Congress assembled." Filippo Mazzei , an Italian physician and promoter of liberty, was a close friend and confidant of Thomas Jefferson. In 1774 he published a pamphlet containing the phrase, which Jefferson incorporated essentially intact into the Declaration of Independence: "All men are by nature equally free and independent". Congress ordered that

9315-436: The Rhode Island legislature renouncing its allegiance to Great Britain on May 4—the first colony to do so. Many declarations were resolutions adopted at town or county meetings that offered support for independence. A few came in the form of jury instructions, such as the statement issued on April 23, 1776, by Chief Justice William Henry Drayton of South Carolina: "the law of the land authorizes me to declare ... that George

9450-452: The Second Continental Congress adopted the Articles of Confederation on November 15, 1777, and the city later served as the meeting place for the Constitutional Convention , which ratified the Constitution in Independence Hall in Philadelphia on September 17, 1787. Philadelphia served as capital of the United States for much of the colonial and early post-colonial periods, including for a decade, from 1790 to 1800, while Washington, D.C. ,

9585-433: The Second Continental Congress unanimously passed the Lee Resolution , which established the consensus of the Congress that the British had no governing authority over the Thirteen Colonies. The Declaration justified the independence of the United States by listing 27 colonial grievances against King George III and by asserting certain natural and legal rights, including a right of revolution. After unanimously ratifying

9720-526: The Third, King of Great Britain ... has no authority over us, and we owe no obedience to him." Most of these declarations are now obscure, having been overshadowed by the resolution for independence, approved by Congress on July 2, and the declaration of independence, approved and printed on July 4 and signed in August. The modern scholarly consensus is that the best-known and earliest of the local declarations

9855-485: The Thirteen Colonies from April to July 1776. These "declarations" took a variety of forms. Some were formal written instructions for Congressional delegations, such as the Halifax Resolves of April 12, with which North Carolina became the first colony to explicitly authorize its delegates to vote for independence. Others were legislative acts that officially ended British rule in individual colonies, such as

9990-585: The United States after Midtown Manhattan in New York City. Philadelphia's neighborhoods are divided into six large sections that surround Center City: North Philadelphia , Northeast Philadelphia , South Philadelphia , Southwest Philadelphia , West Philadelphia , and Northwest Philadelphia . The city's geographic boundaries have been largely unchanged since these neighborhoods were consolidated in 1854. However, each of these large areas contains numerous neighborhoods, some of whose boundaries derive from

10125-472: The boroughs, townships, and other communities that constituted Pennsylvania County before their inclusion within the city. The City Planning Commission , tasked with guiding growth and development of the city, has divided the city into 18 planning districts as part of the Philadelphia2035 physical development plan. Much of the city's 1980 zoning code was overhauled from 2007 to 2012 as part of

10260-587: The city for its outlying railroad commuting towns and newer housing. The resulting reduction in Philadelphia's tax base and the resources of local government caused the city to struggle through a long period of adjustment, and it approached bankruptcy by the late 1980s. In 1985, the MOVE Bombing of the Cobbs Creek neighborhood by city helicopters occurred, killing 11 and destroying 61 homes. Revitalization and gentrification of neighborhoods began in

10395-532: The city's 17th century founding through the present, Philadelphia has been the birthplace or home to an extensive number of prominent and influential Americans . Prior to the arrival of Europeans in the early 17th century, the Philadelphia area was home to the Lenape Indians in the village of Shackamaxon . They were also called the Delaware Indians, and their historical territory was along

10530-456: The city's director of public safety, but political pressure still prevented long-term success in fighting crime and corruption. In 1940, non-Hispanic whites constituted 86.8% of the city's population. In 1950, the population peaked at more than two million residents, then began to decline with the restructuring of industry that led to the loss of many middle-class union jobs. In addition, suburbanization enticed many affluent residents to depart

10665-399: The city's tallest building. The Comcast Technology Center was completed in 2018, reaching a height of 1,121 ft (342 m), as the tallest building in the United States outside of Manhattan and Chicago. For much of Philadelphia's history, the typical home has been the row house . The row house was introduced to the United States via Philadelphia in the early 19th century and, for

10800-519: The city's total park space, including municipal, state, and federal parks in the city, amounts to 11,211 acres (17.5 sq mi). Philadelphia's largest park is Fairmount Park , which includes the Philadelphia Zoo and encompasses 2,052 acres (3.2 sq mi) of the total parkland. Fairmount Park's adjacent Wissahickon Valley Park contains 2,042 acres (3.2 sq mi). Fairmount Park, when combined with Wissahickon Valley Park,

10935-403: The city, Philadelphia is one of the nation's leading centers for higher education and academic research . The city is a national cultural center, hosting more outdoor sculptures and murals than any other city in the nation. Fairmount Park , when combined with adjacent Wissahickon Valley Park in the same watershed , is 2,052 acres (830 ha), representing one of the nation's largest and

11070-694: The city. The Liberty Bell was taken to Zion German Reformed Church in Northampton Town, which is present-day Allentown , where it was hidden under the church's floor boards for nine months from September 1777 until the British Army's departure from Philadelphia in June 1778. Two Revolutionary War battles, the Siege of Fort Mifflin , fought between September 26 and November 16, 1777, and the Battle of Germantown , fought on October 4, 1777, took place within Philadelphia's city limits. In Philadelphia,

11205-529: The colonies made it a natural center for America's revolutionaries . By the 1750s, Philadelphia surpassed Boston as the largest city and busiest port in British America , and the second-largest city in the entire British Empire after London . In 1774, as resentment of British colonial practices and support for independence was burgeoning in the colonies, Philadelphia hosted the First Continental Congress . From 1775 to 1781, Philadelphia hosted

11340-473: The colony. Penn made a treaty of friendship with Lenape chief Tammany under an elm tree at Shackamaxon , in what is now the city's Fishtown neighborhood. Penn named the city Philadelphia, which is Greek for "brotherly love", derived from the Ancient Greek terms φίλος phílos (beloved, dear) and ἀδελφός adelphós (brother, brotherly). There were a number of cities named Philadelphia in

11475-402: The country, and the first Black Episcopal Church . The free Black community also established many schools for its children with the help of Quakers . Large-scale construction projects for new roads, canals , and railroads made Philadelphia the first major industrial city in the United States. Throughout the 19th century, Philadelphia hosted a variety of industries and businesses; the largest

11610-490: The creation of five public parks in the city which were renamed in 1824. Centre Square was renamed Penn Square ; Northeast Square was renamed Franklin Square ; Southeast Square was renamed Washington Square ; Southwest Square was renamed Rittenhouse Square ; and Northwest Square was renamed Logan Circle/Square . Center City had an estimated 183,240 residents as of 2015 , making it the second-most populated downtown area in

11745-484: The date when the announcement of that act was finalized. I am apt to believe that [Independence Day] will be celebrated, by succeeding Generations, as the great anniversary Festival. It ought to be commemorated, as the Day of Deliverance by solemn Acts of Devotion to God Almighty. It ought to be solemnized with Pomp and Parade, with shews, Games, Sports, Guns, Bells, Bonfires and Illuminations from one End of this Continent to

11880-428: The delegation was split between Thomas McKean , who voted yes, and George Read , who voted no. The remaining nine delegations voted in favor of independence, which meant that the resolution had been approved by the committee of the whole. The next step was for the resolution to be voted upon by Congress itself. Edward Rutledge of South Carolina was opposed to Lee's resolution but desirous of unanimity, and he moved that

12015-760: The development of the Piasecki 16H-1 the world's first shaft driven compound helicopter, the PA-59K/VZ-8P Flying Geep (also known as the AirGeep) the Piasecki PA-97 Helistat heavy vertical airlifter and the Piasecki X-49 experimental compound helicopter. Piasecki married Vivian Weyerhaeuser on December 20, 1958. They had seven children: Nicole, Frederick, John, Lynn, Frank, Michael, and Gregory. His son John W. Piasecki

12150-642: The document, but Adams persuaded them to choose Jefferson and promised to consult with him personally. Jefferson largely wrote the Declaration of Independence in isolation between June 11, 1776, and June 28, 1776, from the second floor of a three-story home he was renting at 700 Market Street in Philadelphia , now called the Declaration House and within walking distance of Independence Hall . Considering Congress's busy schedule, Jefferson probably had limited time for writing over these 17 days, and he likely wrote his first draft quickly. Examination of

12285-496: The draft "lie on the table" and then methodically edited Jefferson's primary document for the next two days, shortening it by a fourth, removing unnecessary wording, and improving sentence structure. They removed Jefferson's assertion that King George III had forced slavery onto the colonies, in order to moderate the document and appease those in South Carolina and Georgia, both states which had significant involvement in

12420-593: The final weeks of June 1776. On June 14, the Connecticut Assembly instructed its delegates to propose independence and, the following day, the legislatures of New Hampshire and Delaware authorized their delegates to declare independence. In Pennsylvania, political struggles ended with the dissolution of the colonial assembly, and a new Conference of Committees under Thomas McKean authorized Pennsylvania's delegates to declare independence on June 18. The Provincial Congress of New Jersey had been governing

12555-620: The first being the 1789 Declaration of United Belgian States issued during the Brabant Revolution in the Austrian Netherlands . It also served as the primary model for numerous declarations of independence in Europe , Latin America , Africa , and Oceania following its adoption. Believe me, dear Sir: there is not in the British empire a man who more cordially loves a union with Great Britain than I do. But, by

12690-620: The first modern International Style skyscraper in the United States, the PSFS Building , designed by George Howe and William Lescaze . The 548 ft (167 m) City Hall remained the tallest building in the city until 1987 when One Liberty Place was completed. Numerous glass and granite skyscrapers were built in Center City beginning in the late 1980s. In 2007, the Comcast Center surpassed One Liberty Place to become

12825-543: The first official World's fair in the U.S. Immigrants, mostly from Ireland and Germany, settled in Philadelphia and the surrounding districts. These immigrants were largely responsible for the first general strike in North America in 1835, in which workers in the city won the ten-hour workday. The city was a destination for thousands of Irish immigrants fleeing the Great Famine in the 1840s; housing for them

12960-428: The instructions given to them. Regardless of their personal opinions, delegates could not vote to declare independence unless their instructions permitted such an action. Several colonies, in fact, expressly prohibited their delegates from taking any steps toward separation from Great Britain, while other delegations had instructions that were ambiguous on the issue; consequently, advocates of independence sought to have

13095-627: The intersection of Germantown Avenue and Bethlehem Pike at: 40.07815 N, 75.20747 W. Philadelphia is located on the Atlantic Seaboard Fall Line that separates the Atlantic Plain from the Piedmont . The Schuylkill River's rapids at East Falls were inundated by completion of the dam at Fairmount Water Works . The city is the seat of its own county . The city is bordered by six adjacent counties: Montgomery to

13230-551: The last occurrence of such a temperature being July 21, 2019. The lowest officially recorded temperature was −11 °F (−24 °C) on February 9, 1934. Temperatures at or below 0 °F (−18 °C) are rare, with the last such occurrence being January 19, 1994 . The record low maximum is 5 °F (−15 °C) on February 10, 1899, and December 30, 1880. The record high minimum is 83 °F (28 °C) on July 23, 2011, and July 24, 2010. See or edit raw graph data . Philadelphia County received an ozone grade of F and

13365-546: The late 1970s and continues into the 21st century with much of the development occurring in the Center City and University City neighborhoods. But this expanded a shortage of affordable housing in the city. After many manufacturers and businesses left Philadelphia or shut down, the city started attracting service businesses and began to market itself more aggressively as a tourist destination. Contemporary glass-and-granite skyscrapers were built in Center City beginning in

13500-971: The nation, including a fire company , library , and hospital . A number of philosophical societies were formed, which were centers of the city's intellectual life, including the Philadelphia Society for Promoting Agriculture (1785), the Pennsylvania Society for the Encouragement of Manufactures and the Useful Arts (1787), the Academy of Natural Sciences (1812), and the Franklin Institute (1824). These societies developed and financed new industries that attracted skilled and knowledgeable immigrants from Europe. Philadelphia's importance and central location in

13635-449: The northwest; Bucks to the north and northeast; Burlington County, New Jersey to the east; Camden County, New Jersey to the southeast; Gloucester County, New Jersey to the south; and Delaware County to the southwest. Philadelphia was created in the 17th century, following the plan by William Penn 's surveyor Thomas Holme . Center City is structured with long, straight streets running nearly due east–west and north–south, forming

13770-433: The other from this Time forward forever more. Congress next turned its attention to the committee's draft of the declaration. They made a few changes in wording during several days of debate and deleted nearly a fourth of the text. The wording of the Declaration of Independence was approved on July 4, 1776, and sent to the printer for publication. There is a distinct change in wording from this original broadside printing of

13905-485: The pro-independence cause, it was believed that the others would follow. On May 1, however, opponents of independence retained control of the Pennsylvania Assembly in a special election that had focused on the question of independence. In response, Congress passed a resolution on May 10 which had been promoted by John Adams and Richard Henry Lee , calling on colonies without a "government sufficient to

14040-447: The province since January 1776; they resolved on June 15 that Royal Governor William Franklin was "an enemy to the liberties of this country" and had him arrested. On June 21, they chose new delegates to Congress and empowered them to join in a declaration of independence. As of the end of June, only two of the thirteen colonies had yet to authorize independence, Maryland and New York. Maryland's delegates previously walked out when

14175-470: The pursuit of Happiness ." Stephen Lucas called the Declaration of Independence "one of the best-known sentences in the English language." Historian Joseph Ellis has written that the document contains "the most potent and consequential words in American history". The passage came to represent a moral standard to which the United States should strive. This view was notably promoted by Lincoln, who considered

14310-447: The rebellion. A pro-American minority in Parliament warned that the government was driving the colonists toward independence. Despite this growing popular support for independence, the Second Continental Congress initially lacked the clear authority to declare it. Delegates had been elected to Congress by 13 different governments, which included extralegal conventions, ad hoc committees, and elected assemblies, and they were bound by

14445-471: The resolution countered that foreign governments would not intervene in an internal British struggle, and so a formal declaration of independence was needed before foreign aid was possible. All Congress needed to do, they insisted, was to "declare a fact which already exists". Delegates from Pennsylvania, Delaware, New Jersey, Maryland, and New York were still not yet authorized to vote for independence, however, and some of them threatened to leave Congress if

14580-453: The resolution were adopted. Congress, therefore, voted on June 10 to postpone further discussion of Lee's resolution for three weeks. Until then, Congress decided that a committee should prepare a document announcing and explaining independence in case Lee's resolution was approved when it was brought up again in July. Support for a Congressional declaration of independence was consolidated in

14715-602: The second floor of a three-story home he was renting at 700 Market Street in Philadelphia. The Declaration was a formal explanation of why the Continental Congress voted to declare American independence from the Kingdom of Great Britain , over a year after the American Revolutionary War commenced with the Battles of Lexington and Concord , in April 1775. Two days prior to the Declaration's unanimous adoption,

14850-768: The second half of the 19th century. His contemporaries included John McArthur Jr. , Addison Hutton , Wilson Eyre , the Wilson Brothers , and Horace Trumbauer . In 1871, construction began on the Second Empire -style Philadelphia City Hall . The Philadelphia Historical Commission was created in 1955 to preserve the cultural and architectural history of the city. The commission maintains the Philadelphia Register of Historic Places , adding historic buildings, structures, sites, objects and districts as it sees fit. In 1932, Philadelphia became home to

14985-612: The situation did not change substantially until 1682, when the area was included in William Penn 's charter for Pennsylvania. In 1681, in partial repayment of a debt, Charles II of England granted Penn a charter for what would become the Pennsylvania colony . Despite the royal charter, Penn bought the land from the local Lenape in an effort to establish good terms with the Native Americans and ensure peace for

15120-467: The spine of the north–south highway system along the U.S. East Coast . Philadelphia is a city of many firsts, including the nation's first library (1731), hospital (1751), medical school (1765), national capital (1774), university (by some accounts) (1779), central bank (1781), stock exchange (1790), zoo (1874), and business school (1881). Philadelphia contains 67 National Historic Landmarks , including Independence Hall . From

15255-493: The surrounding Delaware Valley in the early 17th century. The first settlements were founded by Dutch colonists , who built Fort Nassau on the Delaware River in 1623 in what is now Brooklawn, New Jersey . The Dutch considered the entire Delaware River valley to be part of their New Netherland colony. In 1638, Swedish settlers led by renegade Dutch established the colony of New Sweden at Fort Christina , located in present-day Wilmington, Delaware , and quickly spread out in

15390-522: The ten largest combined statistical areas (CSAs) were ranked higher for ozone: Los Angeles (1st), New York City (9th), Houston (12th), Dallas (13th), and San Jose, California (18th). Many smaller CSAs were also ranked higher for ozone, including Sacramento (8th), Las Vegas (10th), Denver (11th), El Paso (16th), and Salt Lake City (20th). Only two of those same ten CSAs, San Jose and Los Angeles, were ranked higher than Philadelphia for both year-round and short-term particle pollution. As of

15525-414: The text of the early Declaration drafts reflects the influence that John Locke and Thomas Paine , author of Common Sense had on Jefferson. He then consulted the other members of the Committee of Five who offered minor changes, and then produced another copy incorporating these alterations. The committee presented this copy to the Congress on June 28, 1776. The title of the document was "A Declaration by

15660-446: The text on July 4, 1776, Congress issued the Declaration of Independence in several forms. It was published as the printed Dunlap broadside , which was widely distributed. The Declaration was first read to the public simultaneously at noon on July 8, 1776, in three exclusively designated locations: Easton, Pennsylvania ; Philadelphia; and Trenton, New Jersey . What Jefferson called his "original Rough draft", one of several revisions,

15795-439: The time. Many colonists believed that Parliament no longer had sovereignty over them, but they were still loyal to King George, thinking he would intercede on their behalf. They were disabused of that notion in late 1775, when the king rejected Congress's second petition , issued a Proclamation of Rebellion , and announced before Parliament on October 26 that he was considering "friendly offers of foreign assistance" to suppress

15930-440: The uphill battle against the British for independence as a challenging but achievable and necessary objective, was published in Philadelphia . In Common Sense , Paine wrote the famed phrase: These are the times that try men's souls; the summer soldier and the sunshine patriot will, in this crisis, shrink from the service of his country; but he that stands it now, deserves the love and thanks of man and woman. Tyranny, like hell,

16065-550: The upper Ohio River basin. Following the American Revolutionary War and subsequent formation of an independent United States, the Lenape began moving further west. In the 1860s, the United States government sent most remaining Lenape in the eastern United States to the Indian Territory in present-day Oklahoma and surrounding territories as part of the Indian removal policy. Europeans first entered Philadelphia and

16200-531: The valley. In 1644, New Sweden supported the Susquehannocks in their war against Maryland colonists. In 1648, the Dutch built Fort Beversreede on the west bank of the Delaware, south of the Schuylkill River near the present-day Eastwick section of Philadelphia, to reassert their dominion over the area. The Swedes responded by building Fort Nya Korsholm , or New Korsholm , named after

16335-531: The vote be postponed until the following day. On July 2, South Carolina reversed its position and voted for independence. In the Pennsylvania delegation, Dickinson and Robert Morris abstained, allowing the delegation to vote three-to-two in favor of independence. The tie in the Delaware delegation was broken by the timely arrival of Caesar Rodney , who voted for independence. The New York delegation abstained once again since they were still not authorized to vote for independence, although they were allowed to do so

16470-466: The words of his biographer John Ferling . Congress tabled the draft of the declaration on Monday, July 1 and resolved itself into a committee of the whole , with Benjamin Harrison of Virginia presiding, and they resumed debate on Lee's resolution of independence. John Dickinson made one last effort to delay the decision, arguing that Congress should not declare independence without first securing

16605-491: The year. The average window for freezing temperatures is November 6 to April 2, allowing a growing season of 217 days. Early fall and late winter are generally dry, with February having the lowest average precipitation at 2.75 inches (70 mm). The dewpoint in the summer averages between 59.1 and 64.5 °F (15 and 18 °C). The highest recorded temperature was 106 °F (41 °C) on August 7, 1918. Temperatures at or above 100 °F (38 °C) are not common, with

16740-541: Was 30.7 in (78 cm), which occurred in January 1996. Precipitation is generally spread throughout the year, with eight to eleven wet days per month, at an average annual rate of 44.1 inches (1,120 mm), but historically ranging from 29.31 in (744 mm) in 1922 to 64.33 in (1,634 mm) in 2011. The most rain recorded in one day occurred on July 28, 2013, when 8.02 in (204 mm) fell at Philadelphia International Airport . Philadelphia has

16875-472: Was being constructed and prepared to serve as the new national capital. In 1793, the largest yellow fever epidemic in U.S. history killed approximately 4,000 to 5,000 people in Philadelphia, or about ten percent of the city's population at the time. The capital of the United States was moved to Washington, D.C. in 1800 upon completion of the White House and U.S. Capitol buildings. The state capital

17010-514: Was developed south of South Street and later occupied by succeeding immigrants. They established a network of Catholic churches and schools and dominated the Catholic clergy for decades. Anti- Irish , anti-Catholic nativist riots erupted in Philadelphia in 1844. The rise in population of the surrounding districts helped lead to the Act of Consolidation of 1854 , which extended the city limits from

17145-482: Was dominated by Georgian architecture , including Independence Hall and Christ Church . In the first decades of the 19th century, Federal and Greek Revival architecture were the dominant styles produced by Philadelphia architects such as Benjamin Latrobe , William Strickland , John Haviland , John Notman , Thomas Walter , and Samuel Sloan . Frank Furness is considered Philadelphia's greatest architect of

17280-627: Was founded in 1682 by William Penn , an English Quaker and advocate of religious freedom , and served as the capital of the Pennsylvania Colony during the British colonial era . The city went on to play a historic and vital role during the American Revolution and Revolutionary War , serving as the central meeting place for the nation's founding fathers , hosting the First Continental Congress in 1774, preserving

17415-471: Was meant to encourage the overthrow of the governments of Pennsylvania and Maryland , which were still under proprietary governance. Congress passed the preamble on May 15 after several days of debate, but four of the middle colonies voted against it, and the Maryland delegation walked out in protest. Adams regarded his May 15 preamble effectively as an American declaration of independence, although

17550-529: Was moved from Philadelphia to Lancaster in 1799, then ultimately to Harrisburg in 1812. Philadelphia remained the nation's largest city until the late 18th century. It also was the nation's financial and cultural center until ultimately being eclipsed in total population by New York City in 1790. In 1816, the city's free Black community founded the African Methodist Episcopal Church , the first independent Black denomination in

17685-406: Was one of more than 36 industrial cities nationally to suffer a race riot during Red Summer in post- World War I unrest as recent immigrants competed with Blacks for jobs. In the 1920s, the public flouting of Prohibition laws, organized crime , mob violence, and corrupt police involvement in illegal activities led to the appointment of Brig. Gen. Smedley Butler of the U.S. Marine Corps as

17820-561: Was part of a larger divergence between British and American interpretations of the British Constitution and the extent of Parliament's authority in the colonies. The orthodox British view, dating from the Glorious Revolution of 1688, was that Parliament was the supreme authority throughout the empire, and anything that Parliament did was constitutional. In the colonies, however, the idea had developed that

17955-440: Was setting the stage for an official declaration of independence even while a document was being written to explain the decision. On June 11, 1776, Congress appointed the Committee of Five to draft a declaration, including John Adams of Massachusetts, Benjamin Franklin of Pennsylvania, Thomas Jefferson of Virginia, Robert R. Livingston of New York, and Roger Sherman of Connecticut. The committee took no minutes, so there

18090-713: Was the textile industry . Major corporations in the 19th and early 20th centuries included the Baldwin Locomotive Works , William Cramp & Sons Shipbuilding Company , and the Pennsylvania Railroad . Established in 1870, the Philadelphia Conveyancers' Association was chartered by the state in 1871. Along with the U.S. Centennial in 1876, the city's industry was celebrated in the Centennial Exposition ,

18225-408: Was the custom, Congress appointed a committee to draft a preamble to explain the purpose of the resolution. John Adams wrote the preamble, which stated that because King George had rejected reconciliation and was hiring foreign mercenaries to use against the colonies, "it is necessary that the exercise of every kind of authority under the said crown should be totally suppressed". Adams' preamble

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