September 11 attacks

E6490

aircraft hijacking historical event mass murder suicide attack terrorist attack

The September 11 attacks were a series of coordinated terrorist hijackings and suicide attacks carried out by al-Qaeda against targets in the United States in 2001, resulting in massive loss of life and global political and security repercussions.

Jump to: Surface forms Statements Referenced by

Observed surface forms (5)

Surface form	Occurrences
September 11, 2001 attacks	10
September 11, 2001 terrorist attacks	3
2001 World Trade Center attack	1
September 11 attacks were a result of a failure of imagination, policy, capabilities, and management	1
World Trade Center attacks	1

Statements (58)

Predicate	Object
instanceOf	aircraft hijacking ⓘ historical event ⓘ mass murder ⓘ suicide attack ⓘ terrorist attack ⓘ
aircraftUsed	American Airlines Flight 11 ⓘ American Airlines Flight 77 ⓘ United Airlines Flight 175 ⓘ United Airlines Flight 93 ⓘ
airlineInvolved	American Airlines ⓘ United Airlines ⓘ
alsoKnownAs	9/11 ⓘ September 11 attacks ⓘ surface form: September 11, 2001 attacks
claimedBy	Osama bin Laden ⓘ
commemoratedOn	September 11 ⓘ
commemorationName	Patriot Day ⓘ
countryAttacked	United States of America ⓘ surface form: United States
date	2001-09-11 ⓘ
fatalitiesApproximate	nearly 3000 ⓘ
fatalitiesCategory	civilians ⓘ firefighters ⓘ military personnel ⓘ police officers ⓘ
impact	expansion of global counterterrorism measures ⓘ major changes in global aviation security ⓘ
injuriesApproximate	over 6000 ⓘ
intendedTarget	United States Capitol ⓘ White House ⓘ
locationOfImpact	North Tower of the World Trade Center ⓘ Pentagon ⓘ South Tower of the World Trade Center ⓘ field near Shanksville, Pennsylvania ⓘ
memorial	Flight 93 National Memorial ⓘ National September 11 Memorial & Museum ⓘ Pentagon Memorial ⓘ
motive	Islamist extremism ⓘ anti-Americanism ⓘ
notableConsequence	expansion of U.S. intelligence surveillance programs ⓘ intensified airport security screening worldwide ⓘ
numberOfHijackedAircraft	4 ⓘ
numberOfHijackers	19 ⓘ
perpetrator	al-Qaeda ⓘ
planner	Osama bin Laden ⓘ
primaryTarget	Pentagon ⓘ World Trade Center (reconstructed complex) ⓘ surface form: World Trade Center
principalArchitect	Khalid Sheikh Mohammed ⓘ
responsibleOrganizationType	jihadist militant organization ⓘ
result	collapse of the World Trade Center Twin Towers ⓘ partial collapse of World Trade Center 7 ⓘ severe damage to the Pentagon ⓘ
targetedArea	Shanksville, Pennsylvania ⓘ
targetedCity	Arlington, Virginia ⓘ New York City ⓘ
triggeredEvent	War in Afghanistan (2001–2021) ⓘ surface form: United States invasion of Afghanistan Global War on Terrorism ⓘ surface form: War on terror creation of the U.S. Department of Homeland Security ⓘ passage of the USA PATRIOT Act ⓘ
year	2001 ⓘ

Referenced by (85)

Full triples — surface form annotated when it differs from this entity's canonical label.

Bush at War → aboutEvent → September 11 attacks ⓘ

this entity surface form: September 11, 2001 terrorist attacks

September 11 attacks → alsoKnownAs → September 11 attacks ⓘ

this entity surface form: September 11, 2001 attacks

Kaseman Beckman Advanced Strategies → associatedWithEvent → September 11 attacks ⓘ

this entity surface form: September 11, 2001 attacks

St. Nicholas Greek Orthodox Church and National Shrine → associatedWithEvent → September 11 attacks ⓘ

United 93 → basedOn → September 11 attacks ⓘ

War in Afghanistan (2001–2021) → cause → September 11 attacks ⓘ

National September 11 Memorial & Museum → commemorates → September 11 attacks ⓘ

Pentagon Memorial → commemorates → September 11 attacks ⓘ

Flight 93 National Memorial → commemoratesEvent → September 11 attacks ⓘ

North Pool → commemoratesEvent → September 11 attacks ⓘ

South Pool → commemoratesEvent → September 11 attacks ⓘ

this entity surface form: 2001 World Trade Center attack

9/11 Commission Report → concludesThat → September 11 attacks ⓘ

this entity surface form: September 11 attacks were a result of a failure of imagination, policy, capabilities, and management

Anderson Cooper → coveredEvent → September 11 attacks ⓘ

Canadian Air Transport Security Authority → createdAsResponseTo → September 11 attacks ⓘ

Pentagon → damagedIn → September 11 attacks ⓘ

107th United States Congress → dealtWithEvent → September 11 attacks ⓘ

Kaseman Beckman Advanced Strategies → designedForEvent → September 11 attacks ⓘ

this entity surface form: September 11, 2001 attacks

original World Trade Center → destroyedIn → September 11 attacks ⓘ

North Tower of the World Trade Center → destructionEvent → September 11 attacks ⓘ

Intelligence Authorization Act for Fiscal Year 2003 → enactedAfter → September 11 attacks ⓘ

this entity surface form: September 11, 2001 attacks

National Counterterrorism Center → establishedAfter → September 11 attacks ⓘ

Washington DC Special Flight Rules Area → establishedAfter → September 11 attacks ⓘ

U.S. Northern Command → establishedInResponseTo → September 11 attacks ⓘ

United Airlines Flight 175 → event → September 11 attacks ⓘ

Shanksville, Pennsylvania → eventOccurredNear → September 11 attacks ⓘ

National Commission on Terrorist Attacks Upon the United States → focusEvent → September 11 attacks ⓘ

Homeland Security Council of the United States → formedAsResponseTo → September 11 attacks ⓘ

Transportation Security Administration → formedAsResponseTo → September 11 attacks ⓘ

107th United States Congress → handledAftermathOf → September 11 attacks ⓘ

2001 fall of Kabul → hasCause → September 11 attacks ⓘ

Global War on Terrorism → hasCause → September 11 attacks ⓘ

Operation Noble Eagle → hasCause → September 11 attacks ⓘ

Operation Enduring Freedom → inceptionCause → September 11 attacks ⓘ

The Rising → inspiredBy → September 11 attacks ⓘ

Khalid Sheikh Mohammed → involvedIn → September 11 attacks ⓘ

5 World Trade Center (planned) → isPartOfRedevelopmentAfter → September 11 attacks ⓘ

History of New York City → keyEvent → September 11 attacks ⓘ

Shanksville, Pennsylvania → knownFor → September 11 attacks ⓘ

this entity surface form: September 11, 2001 terrorist attacks

Aviation and Transportation Security Act → legislativeResponseTo → September 11 attacks ⓘ

Homeland Security Act of 2002 → legislativeResponseTo → September 11 attacks ⓘ

this entity surface form: September 11, 2001 terrorist attacks

Public Law 107-296 → legislativeResponseTo → September 11 attacks ⓘ

this entity surface form: September 11, 2001 attacks

Public Law 107-56 → legislativeResponseTo → September 11 attacks ⓘ

Bush at War → mainSubject → September 11 attacks ⓘ

Falling Man → mainSubject → September 11 attacks ⓘ

The Rising → mainSubject → September 11 attacks ⓘ

HSA → motivatedByEvent → September 11 attacks ⓘ

subject surface form: Homeland Security Act of 2002

IRTPA → motivatedByEvent → September 11 attacks ⓘ

Public Law 108-458 → motivatedByEvent → September 11 attacks ⓘ

UN Security Council Resolution 1373 → motivatedByEvent → September 11 attacks ⓘ