Will learning about 9/11 be mandated in schools across America?
"The Big Sunday Show" panelists discuss the importance of remembering and learning from the 9/11 attacks in school.
The tragic events of 9/11 unfolded quickly. Just a few short hours after terrorists passed through security screening in Portland, Maine, the Twin Towers of the World Trade Center were in ruins, the Pentagon was burning and a smoking crater in the Pennsylvania countryside marked the grave of passengers-turned-heroes.
In the minutes after four commercial planes were hijacked on the sunny, late-summer morning, phone calls from frightened passengers and crew quickly went out to loved ones and emergency personnel on the ground, alerting them to the unfolding disaster.
Below is a timeline of the events of Sept. 11, 2001, from the terrorists going through security that morning to President George W. Bush's address to the nation that evening.
The 9/11 Memorial in New York City honors those who died on Sept. 11, 2001. (Gary Hershorn / Getty Images / File)
PATHWAY TO 9/11: HOW BIN LADEN CAME TO MASTERMIND THE DEVASTATING TERROR ATTACKS
- 5:45 a.m. Terrorists pass through security screening in Portland, Maine
- 7:59 a.m. American Airlines Flight 11 takes off from Boston
- 8:15 a.m. United Airlines Flight 175 takes off from Boston
- 8:19 a.m. American Airlines ground personnel notified of hijacking by flight attendant on Flight 11
- 8:20 a.m. American Airlines Flight 77 takes off from Washington Dulles International Airport
- 8:24 a.m. Flight 11 transmits message by hijacker
- 8:30 a.m. Employees flood into work at the World Trade Center in New York City
- 8:37 a.m. Boston air traffic control alerts military
- 8:42 a.m. United Airlines Flight 93 takes off from Newark, New Jersey, after delay
- 8:46 a.m. The north tower is hit
- 8:50 a.m. President George W. Bush is alerted of north tower hit
- 8:55 a.m. The south tower is declared secure
- 8:59 a.m. Decision is made by PAPD Sgt. Al DeVona to evacuate both towers
- 9 a.m. Phone calls are made from those trapped on Flight 175
- 9:02 a.m. Evacuation commences in south tower
- 9:03 a.m. South tower is hit
- 9:05 a.m. The president is informed of south tower hit
- 9:12 a.m. Those on the ground are alerted of Flight 77 hijacking through phone calls made from plane
- 9:30 a.m. The Mayor's Office of Emergency Management is evacuated
- 9:36 a.m. Vice President Dick Cheney evacuates to Presidential Emergency Operations Center
- 9:37 a.m. Third plane crashes into Pentagon
- 9:42 a.m. FAA grounds all flights
- 9:45 a.m. Evacuations begin at the White House and U.S. Capitol
- 9:58 a.m. 911 call is placed by Edward Felt from Flight 93
- 9:59 a.m. The south tower collapses
- 10:03 a.m. Flight 93 crashes in field in Shanksville, Pennsylvania
- 10:15 a.m. Pentagon E ring collapses
- 10:28 a.m. North tower collapses
- 11:02 a.m. Mayor orders evacuation of Lower Manhattan
- 12:16 p.m. Last flight in United States lands
- 12:30 p.m. Group of 14 survivors are found in north tower ruins
- Early afternoon: Rescue efforts continue at Ground Zero
- 5:20 p.m. 7 World Trade Center collapses
- 8:30 p.m. President addresses the nation
1. 5:45 A.M. Terrorists pass through security screening in Portland, Maine
The hijackers passed through security screening in Portland, Maine. There were 19 terrorists who passed through; they would later be split among four planes. Prior to 9/11, airports were not required to videotape security checkpoints and knives with less than a 4-inch blade were allowed on flights.
2. 7:59 A.M. American Airlines Flight 11 takes off from Boston
The first of the four hijacked flights to take off was American Airlines Flight 11. This flight took off from Boston Logan International Airport in Massachusetts. There were 11 crew members and 76 passengers on board this plane with five hijackers.
The Twin Towers were hit by two hijacked planes on the morning of Sept. 11, 2001. A third plane slammed into the Pentagon. A fourth crashed in a field in Pennsylvania after passengers and crew fought back, deterring the plane from its likely intended target, the U.S. Capitol. (Albert L. Ortega / WireImage / File)
9/11 FAMILIES, FIRST RESPONDERS SPLIT OVER BEING OFFERED AFFORDABLE HOUSING AT GROUND ZERO
3. 8:15 A.M. United Airlines Flight 175 takes off from Boston
The second flight to take off was United Airlines Flight 175, which also took off from Boston, Massachusetts. There were nine crew members, 51 passengers and five hijackers on the plane.
4. 8:19 A.M. American Airlines ground personnel notified of hijacking by flight attendant on Flight 11
Betty Ann Ong was a flight attendant on American Airlines Flight 11. She alerted American Airlines ground personnel of the hijacking by using an in-flight phone.
She made the call after a passenger was stabbed in first class. Ong's call lasted about 25 minutes. Shortly after she was on the phone with ground personnel, the hijackers turned off the plane's transponder, severing air traffic control's ability to monitor the plane's flight path.
Shortly after, at 8:32 a.m., flight attendant Madeline Amy Sweeney called her friend, who was a manager at Boston Logan International Airport, and provided information about the hijacking, including a description of what the hijackers looked like.
5. 8:20 A.M. American Airlines Flight 77 takes off from Washington Dulles International Airport
American Airlines Flight 77 took off with six crew members, 53 passengers and five hijackers.
American Airlines Flight 77 takes off from Washington Dulles Airport. This plane would crash into the Pentagon a short time later. (Library of Congress / Interim Archives/Getty Images / File)
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6. 8:24 A.M. Flight 11 transmits message by hijacker
At this time, a message was transmitted that was only meant to go to those on board the plane, but the message was broadcasted to air traffic control instead. The terrorist made another unintended transmission minutes later. At least one of the two unintended transmissions was noticed by the pilot of Flight 175 and was reported to the Federal Aviation Administration (FAA).
7. 8:30 A.M. Employees flood into work at the World Trade Center in New York City
A large volume of workers started their day at the World Trade Center in New York City. Conferences began and events for later in the day were prepared.
8. 8:37 A.M. Boston air traffic control alerts military
The military was alerted of the hijackers' message by Boston's air traffic control center.
9. 8:42 A.M. United Airlines Flight 93 takes off from Newark, New Jersey, after delay
The last of the four hijacked planes to leave the airport was United Airlines Flight 93, which took off from Newark, New Jersey. This particular flight experienced a delay because of regular traffic. The flight was originally supposed to take off at the same time as the others.
United Airlines Flight 93 had seven crew members, 33 passengers and four hijackers aboard.
The north tower is hit at 8:46 a.m. by American Airlines Flight 11, causing hundreds of casualties instantly, both on the plane and in the building. (Jennifer S. Altman / WireImage / File)
10. 8:46 A.M. The north tower is hit
American Airlines Flight 11 slammed into the north tower of the World Trade Center in New York City. This was the first place to be hit by the terrorists. The 93rd to 99th floors were hit by the plane. Those on the plane and hundreds in the building were killed on impact.
11. 8:50 A.M. President George W. Bush is alerted of north tower hit
A few minutes after the north tower is hit, President George W. Bush was alerted. At the time, he was visiting an elementary school in Sarasota, Florida.
12. 8:55 A.M. The south tower is declared secure
The World Trade Center's south tower was declared secure. Shortly after this announcement, an evacuation began.
13. 8:59 A.M. Decision is made by PAPD Sgt. Al DeVona to evacuate both towers
PAPD Sgt. Al DeVona issued an order to evacuate both of the towers at 8:59 a.m., just minutes before the plane crashes into the south tower.
14. 9 A.M. Phone calls from those on Flight 175 are made
By about 9 a.m., people on board Flight 175 begin making calls to family members. At 8:52 a.m., a flight attendant reached out to a United Airlines operator to report the hijacking.
TUNNEL TO TOWERS CEO HONORS 9/11 HEROES DURING ANNUAL TOWER CLIMB
The south tower is hit at 9:30 a.m. Within the next hour, both towers collapse. (John Mottern / AFP via Getty Images / File)
15. 9:02 A.M. Evacuation commences in south tower
People start to evacuate the south tower.
16. 9:03 A.M. South tower is hit
The south tower was hit by United Airlines Flight 175. The plane crashed into floors 77 through 85.
17. 9:05 A.M. The president is informed of south tower hit
President Bush was alerted of the second plane strike. He left the elementary school in Florida at 9:35 a.m. and boarded Air Force One. The plane departed at 9:54 a.m.
18. 9:12 A.M. Those on the ground are alerted of Flight 77 hijacking through phone calls made from plane
Calls began to come through from those trapped on Flight 77. Flight attendant Renee A. May called her mother, Nancy May, and told her about the hijackers. After the call with her daughter, Nancy made a call to American Airlines.
Barbara K. Olson called her husband, U.S. Solicitor General Theodore Olson, who alerted federal officials.
9/11 IMAGES OF THE ATTACK THAT CHANGED THE WORLD
19. 9:30 A.M. The Mayor's Office of Emergency Management is evacuated
Another evacuation began, this time at the Mayor's Office of Emergency Management.
20. 9:36 A.M. Vice President Dick Cheney evacuates to Presidential Emergency Operations Center
Evacuations continued during the morning of 9/11 as Vice President Dick Cheney was moved to the Presidential Emergency Operations Center, located beneath the White House.
21. 9:37 A.M. Third plane crashes into Pentagon
The third of the hijacked planes, American Airlines Flight 77, crashed into the Pentagon.
22. 9:42 A.M. FAA grounds all flights
After the third plane crashed, all flights in the United States were grounded by the FAA, stopping all air travel in the country for the time being.
23. 9:45 A.M. Evacuations begin at the White House and U.S. Capitol
At this point, evacuations were underway at both the White House and the U.S. Capitol.
24. 9:58 A.M. 911 call is placed by Edward Felt from Flight 93
Around this time, phone calls were made from Flight 93 – a total of 37 calls were made from this flight. A 911 call was placed by passenger Edward Felt, who was hiding in the bathroom during the call.
WE HONOR 9/11 HEROES LIKE MY BROTHER, FIREFIGHTER STEPHEN SILLER, BY DOING GOOD WORKS IN THEIR NAMES
The south tower is the first to collapse at 9:59 a.m. The building collapses in just 10 seconds. (David Button / AFP via Getty Images / File)
25. 9:59 A.M. The south tower collapses
The south tower, which burned for 56 minutes after the initial crash, collapsed in just 10 seconds.
26. 10:03 A.M. Flight 93 crashes in field in Shanksville, Pennsylvania
Flight 93, which was initially heading for the U.S. Capitol building, plunged into in a field in Shanksville, Pennsylvania, after passengers and crew made the decision to fight the hijackers.
27. 10:15 A.M. Pentagon E ring collapses
The Pentagon's E ring collapsed shortly before the fall of the north tower in New York City.
28. 10:28 A.M. North tower collapses
The north tower collapsed after 102 minutes.
29. 11:02 A.M. Mayor orders evacuation of Lower Manhattan
After the collapse of both towers, Mayor Rudy Giuliani ordered the evacuation of Lower Manhattan.
30. 12:16 P.M. Last flight in United States lands
In the early afternoon, the last flight in the United States landed. This marked U.S. airspace officially closing.
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President George W. Bush addresses the nation from the White House on the night of the attacks. (Greg Mathieson / Mai / Getty Images / File)
31. 12:30 P.M. Group of 14 survivors found in north tower ruins
A group of 14 survivors, made up of 13 first responders and one civilian, were found in the ruins of north tower's stairwell B.
32. Early afternoon: Rescue efforts continue at Ground Zero
Through the early afternoon, rescue efforts continued in the ruins, which became referred to as "Ground Zero."
33. 5:20 P.M. 7 World Trade Center collapses
Later in the day, at 5:20 p.m., 7 World Trade Center collapsed. There were no causalities in the collapse since the building had already been evacuated.
34. 8:30 P.M. President addresses the nation
On the night of 9/11, the president addressed the nation after the day's tragic events.
"The search is underway for those who are behind these evil acts. I’ve directed the full resources of our intelligence and law enforcement communities to find those responsible and to bring them to justice. We will make no distinction between the terrorists who committed these acts and those who harbor them," President Bush says during his address.
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