Take a look back at 19 basic facts about the Pentagon, Flight 93 and World Trade Center attacks. As a warning: Some of the content may be triggering.

President Biden speaks during the ceremony marking the 21st anniversary of the 9/11 attacks Sunday, Sept. 11, 2022, at the Pentagon. Reuters ...

Two decades have passed since September 11, 2001, when a group of al Qaeda terrorists hijacked and crashed four planes, but the 9/11 attacks will never be forgotten.

Update 9:37 a.m. ET, Sept. 11: A moment of silence was held to mark the time when Flight 77 hit the Pentagon. The ceremony in Arlington, Virginia, was scheduled to start at 9 a.m. with Defense ...

On September 11 we remember the sacrifices of U.S. citizens and service members on the day that is forever burned into our hearts and minds. As the towers fell, the Pentagon burned and the ground ...

Perhaps then, my column about 9/11 is a reminder to remember, not just the events of that day (which, to be honest, I do think you should reflect upon), but everything that came after.

Biden honors 9/11 victims at Pentagon ceremony: ‘This is a day not only to remember, but a day of renewal and resolve’ ...

9/11 is a day that shaped America as we know it today; read on to learn more about the tragedy.

Remembering 9/11 People visit the September 11 Memorial and Museum, which is located on the land where the Twin Towers once stood before they were destroyed in the attacks on September 11, 2001 ...

Remembering 9/11 People visit the September 11 Memorial and Museum, which is located on the land where the Twin Towers once stood before they were destroyed in the attacks on September 11, 2001 ...