Outline of the September 11 attacks
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outline Outline or outlining may refer to: * Outline (list), a document summary, in hierarchical list format * Code folding, a method of hiding or collapsing code or text to see content in outline form * Outline drawing, a sketch depicting the outer edge ...
is provided as an overview of and topical guide to the September 11 attacks and their consequences:
September 11 attacks The September 11 attacks, commonly known as 9/11, were four coordinated suicide terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, nineteen terrorists hijacked four commercia ...
– four coordinated
suicide attack A suicide attack is any violent Strike (attack), attack, usually entailing the attacker detonating an explosive, where the attacker has suicide, accepted their own death as a direct result of the attacking method used. Suicide attacks have oc ...
s upon the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
and the
Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
, area on September 11, 2001. On that Tuesday morning, 19
terrorists Terrorism, in its broadest sense, is the use of criminal violence to provoke a state of terror or fear, mostly with the intention to achieve political or religious aims. The term is used in this regard primarily to refer to intentional violen ...
from the Islamist militant group
al-Qaeda Al-Qaeda (; , ) is an Islamic extremism, Islamic extremist organization composed of Salafist jihadists. Its members are mostly composed of Arab, Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian and military ta ...
hijacked Hijacking may refer to: Common usage Computing and technology * Bluejacking, the unsolicited transmission of data via Bluetooth * Brandjacking, the unauthorized use of a company's brand * Browser hijacking * Clickjacking (including ''like ...
four passenger jets. The hijackers intentionally crashed two planes,
American Airlines Flight 11 American Airlines Flight 11 was a domestic passenger flight that was hijacked by five al-Qaeda terrorists on September 11, 2001 as part of the September 11 attacks. Lead hijacker Mohamed Atta deliberately crashed the plane into the North Tower ...
and
United Airlines Flight 175 United Airlines Flight 175 was a domestic passenger flight that was hijacked by five al-Qaeda terrorists on September 11, 2001, as part of the September 11 attacks. The flight's scheduled plan was from Logan International Airport, in Boston, M ...
, into the Twin Towers of the
World Trade Center World Trade Centers are sites recognized by the World Trade Centers Association. World Trade Center may refer to: Buildings * List of World Trade Centers * World Trade Center (2001–present), a building complex that includes five skyscrapers, a ...
in New York City; both towers collapsed within two hours. Hijackers crashed
American Airlines Flight 77 American Airlines Flight 77 was a scheduled American Airlines domestic transcontinental passenger flight from Washington Dulles International Airport in Dulles, Virginia, to Los Angeles International Airport in Los Angeles, California. The Boe ...
into
the Pentagon The Pentagon is the headquarters building of the United States Department of Defense. It was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the phrase ''The Pentagon'' is often used as a metony ...
in
Arlington, Virginia Arlington County is a county in the Commonwealth of Virginia. The county is situated in Northern Virginia on the southwestern bank of the Potomac River directly across from the District of Columbia, of which it was once a part. The county is ...
. The fourth jet,
United Airlines Flight 93 United Airlines Flight 93 was a domestic scheduled passenger flight that was hijacked by four al-Qaeda attackers aboard the plane on the morning of September 11, 2001, as part of the September 11 attacks. The plane eventually crashed in Som ...
, crashed into a field near
Shanksville, Pennsylvania Shanksville is a borough in Somerset County, Pennsylvania. It has a population of 197 as of the 2020 U.S. census. It is part of the Somerset, Pennsylvania Micropolitan Statistical Area and is located southeast of Pittsburgh and west of Philade ...
, after passengers attempted to take control before it could reach the hijacker's intended target in Washington, D.C. Nearly 3,000 died in the attacks, and the September 11 attacks have had broad and lasting consequences to military policy, politics, and foreign relations. Effects have also been seen in literature, film, and popular culture.


Before the attacks

*'' Bin Ladin Determined To Strike in US'' *
Motives for the September 11 attacks The September 11 attacks in the United States in 2001 were carried out by 19 hijackers of the militant Islamist terrorist organization al-Qaeda. In the 1990s, al-Qaeda leader Osama bin Laden declared a holy war against the United States, and iss ...
*
Planning of the September 11 attacks On September 11, 2001, 19 al-Qaeda terrorists took control of four commercial aircraft and used them as suicide weapons in a series of four coordinated acts of terrorism to strike the World Trade Center in New York City, The Pentagon in Arlington ...
On the morning of September 11, 2001, 19 al-Qaeda terrorists hijacked four commercial passenger jet airliners, intentionally crashing two into the World Trade Center in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
. The hijackers crashed a third airliner into the Pentagon. The fourth plane crashed in a field near Shanksville, Pennsylvania. Nearly 3,000 victims and the 19 hijackers died in the attacks.


Attack type

*
Islamic terrorism Islamic terrorism (also known as Islamist terrorism or radical Islamic terrorism) refers to terrorist acts with religious motivations carried out by fundamentalist militant Islamists and Islamic extremists. Incidents and fatalities f ...
*
Aircraft hijacking Aircraft hijacking (also known as airplane hijacking, skyjacking, plane hijacking, plane jacking, air robbery, air piracy, or aircraft piracy, with the last term used within the special aircraft jurisdiction of the United States) is the unlawfu ...
*
Suicide attack A suicide attack is any violent Strike (attack), attack, usually entailing the attacker detonating an explosive, where the attacker has suicide, accepted their own death as a direct result of the attacking method used. Suicide attacks have oc ...
*
Mass murder Mass murder is the act of murdering a number of people, typically simultaneously or over a relatively short period of time and in close geographic proximity. The United States Congress defines mass killings as the killings of three or more pe ...
*
Stabbing A stabbing is penetration or rough contact with a sharp or pointed object at close range. ''Stab'' connotes purposeful action, as by an assassin or murderer, but it is also possible to accidentally stab oneself or others. Stabbing differs from ...
*
Crimes against humanity Crimes against humanity are widespread or systemic acts committed by or on behalf of a ''de facto'' authority, usually a state, that grossly violate human rights. Unlike war crimes, crimes against humanity do not have to take place within the ...
*
Slashing (crime) Slashing is a crime intended to cause bodily harm to a victim. A slashing is typically performed with a knife or other type of bladed or sharp object. Slashing of the throat Cutting of the throat as to render the victim unable to breathe. Severi ...
*
arson Arson is the crime of willfully and deliberately setting fire to or charring property. Although the act of arson typically involves buildings, the term can also refer to the intentional burning of other things, such as motor vehicles, wat ...
*
torture Torture is the deliberate infliction of severe pain or suffering on a person for reasons such as punishment, extracting a confession, interrogation for information, or intimidating third parties. Some definitions are restricted to acts c ...
*
blunt trauma Blunt trauma, also known as blunt force trauma or non-penetrating trauma, is physical traumas, and particularly in the elderly who fall. It is contrasted with penetrating trauma which occurs when an object pierces the skin and enters a tissue ...


Emergency response

* U.S. military response during the September 11 attacks *
Rescue and recovery effort after the September 11 attacks on the World Trade Center The September 11 attacks on the World Trade Center elicited a large response of local emergency and rescue personnel to assist in the evacuation of the two towers, resulting in a large loss of the same personnel when the towers collapsed. Afte ...
*
Communication during the September 11 attacks Communication problems and successes played an important role during the September 11 attacks in 2001 and their aftermath. Systems were variously destroyed or overwhelmed by loads greater than they were designed to carry, or failed to operate a ...
*
Radio communications during the September 11 attacks Communication problems and successes played an important role during the September 11 attacks in 2001 and their aftermath. Systems were variously destroyed or overwhelmed by loads greater than they were designed to carry, or failed to operate a ...
*
New York City Police Department The New York City Police Department (NYPD), officially the City of New York Police Department, established on May 23, 1845, is the primary municipal law enforcement agency within the City of New York, the largest and one of the oldest in ...
*
New York City Fire Department The New York City Fire Department, officially the Fire Department of the City of New York (FDNY), is an American department of the government of New York City that provides fire protection services, technical rescue/special operations services, ...
*
Operation Yellow Ribbon Operation Yellow Ribbon (french: Opération ruban jaune) was commenced by Canada to handle the diversion of civilian airline flights in response to the September 11 attacks in 2001 on the United States. Canada's goal was to ensure that potential ...
* Operation Support


Casualties

*
Casualties of the September 11 attacks 2,996 people died in the September 11, 2001 attacks, including 2,977 victims and 19 hijackers who committed murder–suicide, while thousands more were injured. Of the 2,977 fatal victims, 2,753 were killed in the World Trade Center and the ...
*
The Falling Man ''The Falling Man'' is a photograph taken by Associated Press photographer Richard Drew of a man falling from the World Trade Center during the September 11 attacks in New York City. The Unidentified Man in the image was trapped on the uppe ...
*
Cantor Fitzgerald Cantor Fitzgerald, L.P. is an American financial services firm that was founded in 1945. It specializes in institutional equity, fixed income sales and trading, and serving the middle market with investment banking services, prime brokerage, an ...
* Lists of victims of the September 11 attacks *
United Airlines Flight 93 victims United may refer to: Places * United, Pennsylvania, an unincorporated community * United, West Virginia, an unincorporated community Arts and entertainment Films * ''United'' (2003 film), a Norwegian film * ''United'' (2011 film), a BBC Two f ...
*
World Trade Center Captive Insurance Company The World Trade Center Captive Insurance Company was created by New York City with funding from the U.S. Federal Emergency Management Agency (FEMA) in July 2004, as directed by Public Law 108-7. The law provides up to $1 billion to create an insura ...
*
September 11th Fund {{About, the New York-based 9/11 compensation fund, the US Congress-based fund, September 11th Victim Compensation Fund The September 11th Fund was created by the New York Community Trust and the United Way of New York City in response to the dest ...
*
September 11th Victim Compensation Fund The September 11th Victim Compensation Fund (VCF) was created by an Act of Congress, the Air Transportation Safety and System Stabilization Act (49 USC 40101), shortly after 9/11 to compensate the victims of the attack (or their families) in excha ...
*
James Zadroga James Zadroga (February 8, 1971January 5, 2006) was a New York City Police Department (NYPD) officer who died of a respiratory disease that has been attributed to his participation in rescue and recovery operations in the rubble of the World Trad ...


Perpetrators

The leader of al Qaeda, Osama bin Laden, eventually claimed responsibility for the attacks. *
Responsibility for the September 11 attacks At around 9:30pm on September 11, 2001, George Tenet, director of the Central Intelligence Agency (CIA) told President George W. Bush and U.S. senior officials that the CIA's Counterterrorism Center had determined that Osama Bin Laden and ...
*
al-Qaeda Al-Qaeda (; , ) is an Islamic extremism, Islamic extremist organization composed of Salafist jihadists. Its members are mostly composed of Arab, Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian and military ta ...
*
Osama bin Laden Osama bin Mohammed bin Awad bin Laden (10 March 1957 – 2 May 2011) was a Saudi-born extremist militant who founded al-Qaeda and served as its leader from 1988 until Killing of Osama bin Laden, his death in 2011. Ideologically a Pan-Islamism ...
*
Hijackers in the September 11 attacks The hijackers in the September 11 attacks, who were often referred to as the 9/11 hijackers, were 19 men affiliated with the militant Islamist group al-Qaeda. They hailed from four countries; 15 of them were citizens of Saudi Arabia, two were fro ...
* 20th hijacker * Alleged Saudi role in the September 11 attacks


Consequences

*
Aftermath of the September 11 attacks The September 11 attacks transformed the first term of President George W. Bush and led to what he has called the war on terror. The accuracy of describing it as a "war" and its political motivations and consequences are the topic of strenuous ...
* Reactions to the September 11 attacks *
Closings and cancellations following the September 11 attacks Many closings and cancellations followed the September 11 attacks, including major landmarks, buildings, restrictions on access to Lower Manhattan, as well as postponement or cancellation of major sporting and other events. Landmarks were closed ...
* Airport security repercussions due to the September 11 attacks *
Economic effects of the September 11 attacks The September 11 attacks in 2001 were followed by initial shocks causing global stock markets to drop sharply. The attacks themselves resulted in approximately $40 billion in insurance losses, making it one of the largest insured events ever. Fin ...
*
Health effects arising from the September 11 attacks The health effects arising from the September 11 attacks refers to the illnesses and negative health effects experienced by survivors of the terrorist attacks. Within seconds of the collapse of the World Trade Center, building materials, electr ...
*
Post-9/11 The post-9/11 period is the time after the September 11 attacks, characterized by heightened suspicion of non-Americans in the United States, increased government efforts to address terrorism, and a more aggressive American foreign policy. Pol ...


Military

The United States launched the War on Terror, invading Afghanistan. *
War on Terror The war on terror, officially the Global War on Terrorism (GWOT), is an ongoing international Counterterrorism, counterterrorism military campaign initiated by the United States following the September 11 attacks. The main targets of the campa ...
*
War in Afghanistan (2001–2021) The War in Afghanistan was an armed conflict that began when an Participants in Operation Enduring Freedom, international military coalition led by the United States launched United States invasion of Afghanistan, an invasion of Afghanistan, ...
*
Killing of Osama bin Laden On May 2, 2011, Osama bin Laden, the founder and first leader of the Islamist militant group al-Qaeda, was shot several times and killed at his compound in the Pakistani city of Abbottabad, by United States Navy SEALs of the U.S. Naval Sp ...


Social

*
Murder of Balbir Singh Sodhi Balbir Singh Sodhi (1949 – September 15, 2001), a Sikh-American entrepreneur and franchisee in Mesa, Arizona, was murdered in a hate crime in the aftermath of the September 11 attacks. This was the first of several cases across the United Stat ...
*
Murder of Ross Parker Ross Andrew Parker (17 August 198421 September 2001), from Peterborough, England, was a seventeen-year-old white English male murdered in an unprovoked racially motivated crime. He bled to death after being stabbed, beaten with a hammer an ...
* Families of September 11 *
Cultural influence of the September 11 attacks The cultural influence of the September 11 attacks (9/11) has been profound and long-lasting. The impact of 9/11 has extended beyond geopolitics into society and culture in general. Immediate responses to 9/11 included greater focus on home lif ...
* Lost artworks#Works destroyed in the September 11 attacks


Political

The US enacted the
USA PATRIOT Act The USA PATRIOT Act (commonly known as the Patriot Act) was a landmark Act of Congress, Act of the United States Congress, signed into law by President of the United States, President George W. Bush. The formal name of the statute is the Uniti ...
. Many other countries also strengthened their anti-terrorism legislation and expanded law enforcement powers. *
United Nations Security Council Resolution 1368 United Nations Security Council resolution 1368, adopted unanimously on 12 September 2001, after expressing its determination to combat threats to international peace and security caused by acts of terrorism and recognising the right of individu ...
* U.S. government response to the September 11 attacks *
Detentions following the September 11 attacks Soon after the attacks of September 11, 2001, the United States Government began detaining people who fit the profile of the suspected hijackers: mostly male, Arabic, or Muslim noncitizens. According to Justice Berman, they had arrested 1,182 p ...
*
Legal issues related to the September 11 attacks A number of incidents stemming from the September 11 attacks have raised questions about legality. These include: * Detentions of U.S. residents soon after the attacks. * Detention and imprisonment of hundreds of people without charges and without ...


Economic

Some American stock exchanges stayed closed for the rest of the week following the attack and posted enormous losses on reopening, especially in the airline and insurance industries. The destruction of billions of dollars' worth of office space caused serious damage to the economy of
Lower Manhattan Lower Manhattan (also known as Downtown Manhattan or Downtown New York) is the southernmost part of Manhattan, the central borough for business, culture, and government in New York City, which is the most populated city in the United States with ...
. *
Economic effects of the September 11 attacks The September 11 attacks in 2001 were followed by initial shocks causing global stock markets to drop sharply. The attacks themselves resulted in approximately $40 billion in insurance losses, making it one of the largest insured events ever. Fin ...
*
Financial assistance following the September 11 attacks Charities and relief agencies raised over $657 million in the three weeks following the September 11, 2001 attacks, the vast bulk going to immediate survivors and victims' families. Government assistance On September 21, 2001, the Congress approv ...


Memorials

The
Pentagon Memorial The Pentagon Memorial, formally the National 9/11 Pentagon Memorial, located just southwest of The Pentagon in Arlington County, Virginia, across the Potomac River from Washington, D.C., is a permanent outdoor memorial to the 184 people who di ...
was built adjacent to the building. The rebuilding process has started on the
World Trade Center site The World Trade Center site, often referred to as "Ground zero#World Trade Center, Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. The site is bounde ...
. In 2006, a new office tower was completed on the site of
7 World Trade Center 7 World Trade Center (7 WTC, WTC-7, or Tower 7) refers to two buildings that have existed at the same location within the World Trade Center site in Lower Manhattan, New York City. The original structure, part of the original World Trade Cent ...
. The new
One World Trade Center One World Trade Center (also known as One World Trade, One WTC, and formerly Freedom Tower) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. Designed by David Childs of Skidmore, Owings & Mer ...
was later built and was completed in 2014. Three more towers were originally expected to be built between 2007 and 2012 on the site, but are now delayed to 2018. Ground was broken for the
Flight 93 National Memorial The Flight 93 National Memorial is a memorial built to commemorate the crash of United Airlines Flight 93, which was one of four aircraft hijacked during the September 11 attacks in 2001. The memorial is located in Stonycreek Township in Somer ...
on November 8, 2009, and the first phase of construction is expected to be ready for the 10th anniversary of the attacks on September 11, 2011. * 9/11 Tribute Center * Survivors' Staircase *
World Trade Center cross The World Trade Center cross, also known as the Ground Zero cross, is a formation of steel beams found among the debris of the World Trade Center site in Lower Manhattan, New York City, following the September 11 attacks in 2001. This set of be ...
* International Freedom Center *
Memorials and services for the September 11 attacks The first memorials to the victims of the September 11 attacks in 2001 began to take shape online, as hundreds of webmasters posted their own thoughts, links to the Red Cross and other rescue agencies, photos, and eyewitness accounts. Numerous o ...
*
National September 11 Memorial & Museum The National September 11 Memorial & Museum (also known as the 9/11 Memorial & Museum) is a memorial and museum in New York City commemorating the September 11 attacks of 2001, which killed 2,977 people, and the 1993 World Trade Center bombi ...
*
Patriot Day In the United States, Patriot Day occurs on September 11 of each year in memory of the people killed in the September 11 attacks of the year 2001. History In the immediate aftermath of the attacks, carried out by terrorists from Al-Qaeda, Pre ...
* The Rolling Memorial * World Trade Center Memorial finalists * Take Back The Memorial *
Memory Foundations Memory Foundations is the name given by Daniel Libeskind to his site plan for the World Trade Center (2001–present), World Trade Center, which was originally selected by the Lower Manhattan Development Corporation (LMDC) to be the master plan fo ...
*
Victims of Terrorist Attack on the Pentagon Memorial The Victims of Terrorist Attack on the Pentagon Memorial is a memorial over a group burial site at Arlington National Cemetery in the United States. It commemorates the victims of the attack on the Pentagon, which was struck by a Boeing 757 commer ...


Rebuilding

*
World Trade Center rebuilding controversy The World Trade Center site, often referred to as "Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. The site is bounded by Vesey Street to the north ...


People and organizations

*
Osama bin Laden Osama bin Mohammed bin Awad bin Laden (10 March 1957 – 2 May 2011) was a Saudi-born extremist militant who founded al-Qaeda and served as its leader from 1988 until Killing of Osama bin Laden, his death in 2011. Ideologically a Pan-Islamism ...
*
George W. Bush George Walker Bush (born July 6, 1946) is an American politician who served as the 43rd president of the United States from 2001 to 2009. A member of the Republican Party, Bush family, and son of the 41st president George H. W. Bush, he ...
*
Minoru Yamasaki was an American architect, best known for designing the original World Trade Center in New York City and several other large-scale projects. Yamasaki was one of the most prominent architects of the 20th century. He and fellow architect Edward D ...
*
Rudy Giuliani during the September 11 attacks As Mayor of New York City on September 11, 2001, Rudy Giuliani played a major role in the response to the terrorist attacks against the World Trade Center towers in the city. Preparedness before the attacks Location of Office of Emergency ...
*
Larry Silverstein Larry A. Silverstein (born May 30, 1931) is an American businessman. Among his real estate projects, he is the developer of the rebuilt World Trade Center complex in Lower Manhattan, New York City, as well as one of New York's tallest resident ...
*
Port Authority of New York and New Jersey The Port Authority of New York and New Jersey, PANYNJ; stylized, in logo since 2020, as Port Authority NY NJ, is a joint venture between the U.S. states of New York and New Jersey, established in 1921 through an interstate compact authorized ...
*
Project Rebirth Project Rebirth, Inc. is a U.S. 501(c)(3) non-profit organization created to support victims and early responders to catastrophic events through documentary footage recording the rebuilding at the site of World Trade Center following the Septemb ...
*
THINK Team The THINK Team was a team that consisted of architects, landscape architects, engineers, interactive designers and others who developed several designs for the Lower Manhattan Development Corporation's "Innovative Design Study" that was created in ...
*
Daniel Libeskind Daniel Libeskind (born May 12, 1946) is a Polish–American architect, artist, professor and set designer. Libeskind founded Studio Daniel Libeskind in 1989 with his wife, Nina, and is its principal design architect. He is known for the design a ...
* :People associated with the September 11 attacks


Locations and structures

The original World Trade Center (WTC) was a complex of seven buildings in Lower Manhattan in New York City that was destroyed September 11, 2001. The site is being rebuilt with six new skyscrapers and a memorial to the casualties of the attacks. *
World Trade Center World Trade Centers are sites recognized by the World Trade Centers Association. World Trade Center may refer to: Buildings * List of World Trade Centers * World Trade Center (2001–present), a building complex that includes five skyscrapers, a ...
*
World Trade Center (PATH station) World Trade Center is a terminal station on the PATH system, within the World Trade Center complex in the Financial District of Manhattan, New York City. It is served by the Newark–World Trade Center line at all times, as well as by the Hob ...
*
One World Trade Center One World Trade Center (also known as One World Trade, One WTC, and formerly Freedom Tower) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. Designed by David Childs of Skidmore, Owings & Mer ...
*
Marriott World Trade Center The Marriott World Trade Center was a 22-story, 825-room hotel at 3 World Trade Center within the World Trade Center complex in Manhattan, New York City. It opened in April 1981 as the Vista International Hotel and was the first major hotel t ...
* 4 World Trade Center * 5 World Trade Center *
6 World Trade Center Six World Trade Center was an eight-story building in Lower Manhattan in New York City. It opened in 1974 and was the building in the World Trade Center complex that had the fewest stories. The building served as the U.S. Customs House for Ne ...
*
7 World Trade Center 7 World Trade Center (7 WTC, WTC-7, or Tower 7) refers to two buildings that have existed at the same location within the World Trade Center site in Lower Manhattan, New York City. The original structure, part of the original World Trade Cent ...
*
Deutsche Bank Building The Deutsche Bank Building (formerly Bankers Trust Plaza) was a 39-story office building located at 130 Liberty Street in Manhattan, New York City, adjacent to the World Trade Center site. The building opened in 1974 and closed following the ...
*
St. Nicholas Greek Orthodox Church The St. Nicholas Greek Orthodox Church, officially the St. Nicholas Greek Orthodox Church and National Shrine, is a church and shrine in the World Trade Center in Lower Manhattan, New York City. It is administered by the Greek Orthodox Archdi ...
*
Verizon Building The Verizon Building (also known as 100 Barclay, the Barclay–Vesey Building, and the New York Telephone Company Building) is an office and residential building at 140 West Street in Lower Manhattan, New York City. The 32-story building was d ...
*
List of tenants in One World Trade Center One World Trade Center (also known as One World Trade, One WTC, or Freedom Tower) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. One WTC is the tallest building in the United States, the tall ...
*
List of tenants in Two World Trade Center The original 2 World Trade Center (also known as the South Tower, Tower 2, Building Two, or 2 WTC) was one of the Twin Towers in the original World Trade Center in New York City. The Tower was completed and opened in 1973 at a height of 415 met ...
*
Collapse of the World Trade Center The collapse of the World Trade Center occurred during the terrorist attacks of September 11, 2001, after the Twin Towers were struck by two hijacked commercial airliners. One World Trade Center (WTC 1, or the North Tower) was hit at 8:46  ...
*
World Trade Center site The World Trade Center site, often referred to as "Ground zero#World Trade Center, Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. The site is bounde ...
*
Stonycreek Township, Somerset County, Pennsylvania Stonycreek Township is a township in Somerset County, Pennsylvania. The township takes its name from the stony creek, which flows through it and represents its western boundary. The stream takes its name from the rocky bed over which it flows for ...
*
Shanksville, Pennsylvania Shanksville is a borough in Somerset County, Pennsylvania. It has a population of 197 as of the 2020 U.S. census. It is part of the Somerset, Pennsylvania Micropolitan Statistical Area and is located southeast of Pittsburgh and west of Philade ...
*
The Pentagon The Pentagon is the headquarters building of the United States Department of Defense. It was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the phrase ''The Pentagon'' is often used as a metony ...
*
Lower Manhattan Lower Manhattan (also known as Downtown Manhattan or Downtown New York) is the southernmost part of Manhattan, the central borough for business, culture, and government in New York City, which is the most populated city in the United States with ...
*
Fresh Kills Landfill The Fresh Kills Landfill was a landfill covering in the New York City borough (New York City), borough of Staten Island in the United States. The name comes from the landfill's location along the banks of the Fresh Kills estuary in western State ...
*
The Bathtub The Bathtub refers to the underground foundation area at the site of the World Trade Center and accompanying buildings in New York City. The term bathtub is something of a misnomer, as the area does not hold any water; rather the purpose of its d ...


Aircraft used in the attacks

*
American Airlines Flight 11 American Airlines Flight 11 was a domestic passenger flight that was hijacked by five al-Qaeda terrorists on September 11, 2001 as part of the September 11 attacks. Lead hijacker Mohamed Atta deliberately crashed the plane into the North Tower ...
*
American Airlines Flight 77 American Airlines Flight 77 was a scheduled American Airlines domestic transcontinental passenger flight from Washington Dulles International Airport in Dulles, Virginia, to Los Angeles International Airport in Los Angeles, California. The Boe ...
*
United Airlines Flight 93 United Airlines Flight 93 was a domestic scheduled passenger flight that was hijacked by four al-Qaeda attackers aboard the plane on the morning of September 11, 2001, as part of the September 11 attacks. The plane eventually crashed in Som ...
*
United Airlines Flight 175 United Airlines Flight 175 was a domestic passenger flight that was hijacked by five al-Qaeda terrorists on September 11, 2001, as part of the September 11 attacks. The flight's scheduled plan was from Logan International Airport, in Boston, M ...


Investigations

* PENTTBOM *
9/11 Commission The National Commission on Terrorist Attacks Upon the United States, also known as the 9/11 Commission, was set up on November 27, 2002, "to prepare a full and complete account of the circumstances surrounding the September 11 attacks", includin ...
*
9/11 Commission Report ''The 9/11 Commission Report'' (officially the ''Final Report of the National Commission on Terrorist Attacks Upon the United States)'' is the official report into the events leading up to the September 11, 2001 terrorist attacks. It was prepa ...
* Criticism of the 9/11 Commission *
Trials related to the September 11 attacks This page lists trials related to the September 11 attacks, September 11, 2001, terrorist attacks. Zacarias Moussaoui Zacarias Moussaoui was in jail in Minnesota when the September 11 attacks unfolded. On December 11, 2001, Moussaoui was indic ...
*
Joint Inquiry into Intelligence Community Activities before and after the Terrorist Attacks of September 11, 2001 The Joint Inquiry into Intelligence Community Activities before and after the Terrorist Attacks of September 11, 2001 is the official name of the inquiry conducted by the Senate Select Committee on Intelligence and the House Permanent Select Committ ...


Film, television, literature, and photography

*
List of cultural references to the September 11 attacks This list of cultural references to the September 11 attacks and to the post-9/11 socio political climate, includes works of art, music, books, poetry, comics, theater, film, and television. Art and design *''A Garden Stepping into the Sky'' ...
*
List of entertainment affected by the September 11 attacks The September 11 attacks in the United States in 2001 had a significant impact on broadcast and venue entertainment businesses, prompting cancellations, postponements, and changes in content. In the United States and several other countries, plan ...
*
Cultural influence of the September 11 attacks The cultural influence of the September 11 attacks (9/11) has been profound and long-lasting. The impact of 9/11 has extended beyond geopolitics into society and culture in general. Immediate responses to 9/11 included greater focus on home lif ...
*'' Aftermath: World Trade Center Archive'' *''
Raising the Flag at Ground Zero Raising may refer to: * Raising (linguistics), a syntactic construction * Raising (phonetics), a sound change * Raising (metalworking), a metalworking technique * Barn raising, a community event to erect the wooden framework for a building * Fundra ...
'' *''
The Falling Man ''The Falling Man'' is a photograph taken by Associated Press photographer Richard Drew of a man falling from the World Trade Center during the September 11 attacks in New York City. The Unidentified Man in the image was trapped on the uppe ...
'' *''
The Looming Tower ''The Looming Tower: Al-Qaeda and the Road to 9/11'' is a 2006 non-fiction book by Lawrence Wright, a journalist for ''The New Yorker''. Wright examines the origins of the militant organization Al-Qaeda, the background for various terrorist attac ...
'' *'' Flight 175: As the World Watched'' *''
September 11 Photo Project The September 11 Photo Project was a not-for-profit community based photo project in response to the September 11 attacks and their aftermath. The Project was founded in New York City by Michael Feldschuh, a former Wall Street professional and an a ...
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Categories

* :September 11 attacks * :World Trade Center * :Documentary films about the September 11 attacks


See also

*
List of terrorist incidents in 2001 This is a timeline of incidents in 2001 that have been labelled ''terrorism'' and are not believed to have been carried out by a government or its forces (see state terrorism and state-sponsored terrorism). List guidelines * To be included, ent ...
*
9/11 conspiracy theories 9/11 conspiracy theories attribute the preparation and execution of the September 11 attacks against the United States to parties other than, or in addition to, al-Qaeda. These include the theory that high-level government officials had adv ...
* United States Environmental Protection Agency September 11 attacks pollution controversy


External links

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September 11 attacks The September 11 attacks, commonly known as 9/11, were four coordinated suicide terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, nineteen terrorists hijacked four commercia ...
September 11 attacks The September 11 attacks, commonly known as 9/11, were four coordinated suicide terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, nineteen terrorists hijacked four commercia ...
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