Aftermath of World Trade Center Attack 9/11 started off as a normal day and ended with tragedy. Little did anyone know, 19 terrorists would hijack four different planes after their departures from several different airports. Now, the 9/11 attacks are part of the history books. (Chris Hondros/Getty Images)Photo by: Chris Hondros/Getty Images Surveillance Camera Photographs Two Men Identified By Authorities 5:45 a.m. - Hijackers go through the security screenings. Before 9/11, knives were allowed to be carried on planes if the blade was less than four inches. All the hijackers were carrying knives on them. (US Navy/Getty Images)Photo by: U.S. Navy/Getty Images Plane taking off 7:49 a.m. - A plane takes off from the Boston Airport and headed towards Los Angeles. There were five hijackers on board of that plane, including 76 passengers and 11 crew members. (MGN Online)Photo by: MGN Online Plane taking off 8:15 a.m. - Another flight from Boston takes off and was also heading towards Los Angeles. There were also five hijackers on this plane. There were also 51 passengers and nine crew members. (WSTM News/MGN Online)Photo by: WSTM News Plane 8:20 a.m. - Another flight going towards Los Angeles takes off from Washington Dulles International Airport. This flight had five hijacers, 53 passengers and six crew members. (NBC News/MGN Online)Photo by: NBC News Mohammad Atta 8:24 a.m. - One hijacker, Mohammad Atta, was on Flight 11 and accidentally called air traffic control. A crew member on Flight 175 heard this call and informed the FAA, only to have his plane hijacked moments later. (David Friedman/Getty Images)Photo by: David Friedman/Getty Images Helicopter 8:37 a.m. - After hearing the lead hijacker, Atta, taking over Flight 11, the air traffic controllers in Boston informed the US Air Force (Boeing/MGN Online)Photo by: Boeing American Airlines 8:42 a.m. - The last flight, Flight 93, took off after a delay and headed towards San Francisco. This flight included four hijackers, 33 passengers and seven crew members. (Tim Boyle/Getty Images)Photo by: Tim Boyle/Getty Images North Tower hit 8:46 a.m. - Flight 11 from American Airlines hit the North Tower. The plane hit between floors 93 and 99. The individuals on the plane and the individuals on those floors died instantly. The plane hitting where it did caused everyone above floor 91 to be trapped. (Jose Jimenez/Primera Hora/Getty Images)Photo by: Jose Jimenez/Primera Hora/Getty Images George W. Bush 8:50 a.m. - President George W. Bush is informed of the attack in New York City. Bush had been visiting a school in Florida when he got the news from Andrew Card. (Doug Mills/AP)Photo by: Doug Mills/AP American aircraft on sorties from RAF Lakenheath, England 9:02 a.m. - Air traffic controllers spot a second plane heading towards the Twin Towers but are not able to stop it in time. (Graham Barclay/Getty Images)Photo by: Graham Barclay/Getty Images World Trade Center Attacked 9:03 a.m. - Flight 175 from United Airlines hit the South Tower between floors 77 and 85. This crash instantly killed everyone on the plane and an unknown number of people between those floors. This trapped many above floor 85 and trapped many in elevators. (Spencer Platt/Getty Images)Photo by: Spencer Platt/Getty Images George W. Bush, Dick Cheney 9:05 a.m. - President George W. Bush is informed of the second attack on the South Tower. Andrew Card, the White House chief of staff at the time, told the president about the second attack. (Doug Mills/AP)Photo by: Doug Mills/AP FBI Releases 9/11 photos At The Pentagon 9:37 a.m. - Flight 77 from American Airlines crashed into the Pentagon. All people on the plane died. The crash also caused a fire and killed 125 military and civilian personnel. This attack also included the only person from Kentucky in the attacks to die. (Handout/Getty Images)Photo by: Handout/Getty Images Operation Enduring Freedom 9:42 a.m. - The FAA called for all planes in the nation to be grounded and they did not allow any more departures. (USAF/Getty Images)Photo by: USAF/Getty Images September 11th Terrorist Attacks 9:59 a.m. - The South Tower collapses after burning for almost an hour. It has been reported that over 800 people that were in the building or near the area died. (Richard Drew/AP)Photo by: RICHARD DREW/AP CRASH CRATER 10:03 a.m. - It had been reported that Flight 93 crashed into a field in Pennsylvania. All passengers that were on the plane died. The plane had about 20 minutes before it would reach Washington D.C. Passengers on the plane struggled with hijackers, which caused the plane to crash in the field. (Keith Srakocic/AP)Photo by: KEITH SRAKOCIC/AP WORLD TRADE CENTER 10:28 a.m. - The North Tower collapsed after burning for almost two hours. This caused more that 1,600 people to die. (Richard Drew/AP)Photo by: RICHARD DREW/ASSOCIATED PRESS Search And Rescue Operations At World Trade Center 5:20 p.m. - The 7 World Trade Center collapsed after being on fire four hours. Everyone was evacuated from the building and there were no deaths reported. (Pool/Getty Images)Photo by: Pool/Getty Images APTOPIX Sept 11 Anniversary 9/11 may be in the history books now, but people will always remember where they were when this attack happened. The attacked killed around 3,000 people and cleanup at Ground Zero took months. (J. David Ake/AP)Photo by: J. David Ake/AP FBI released an updated list of the 19 hijackers Here you can find a photo of the 19 hijackers that were involved with the 9/11 attacks. (Getty Images)Photo by: Getty Images/Getty Images