The following is an edit of a post by CNN the day after the 9/11 terrorist attacks on America:
8.45am - (all times are EDT) A hijacked passenger jet, American Airlines Flight 11 out of Boston, Massachusetts, crashes into the North Tower of the World Trade Center, tearing a gaping hole in the building and setting it afire.
9.03am - A second hijacked airliner, United Airlines Flight 175 from Boston, crashes into the South Tower of the World Trade Center and explodes. Both buildings are burning.
9.17am - The Federal Aviation Administration (FAA) shuts down all New York City area airports.
9.21am - The Port Authority of New York and New Jersey orders all bridges and tunnels in the New York area closed.
9.30am - President Bush, speaking in Sarasota, Florida, says the country has suffered an 'apparent terrorist attack'.
9.40am - The FAA halts all flight operations at US airports, the first time in US history that air traffic nationwide has been halted.
9.43am - American Airlines Flight 77 crashes into the Pentagon, sending up a huge plume of smoke. Evacuation begins immediately.
9.45am - The White House evacuates.
9.57am - Bush departs from Florida.
10.05am - The South Tower of the World Trade Center collapses, plummeting into the streets below. A massive cloud of dust and debris forms, and slowly drifts away from the building.
10.10am - A portion of the Pentagon collapses.
10.10am - United Airlines Flight 93, also hijacked, crashes in Somerset County, Pennsylvania, southeast of Pittsburgh.
10.13am - The United Nations building evacuates.
10.22am - In Washington, the State and Justice departments are evacuated, along with the World Bank.
10.24am - The FAA reports that all inbound transatlantic aircraft flying into the United States are being diverted to Canada.
10.28am - The World Trade Center's North Tower collapses from the top down as if it was being peeled apart, releasing a tremendous cloud of debris and smoke.
10.45am - All federal office buildings in Washington are evacuated.
10.57am - New York Governor George Pataki says all state government offices are closed.
11.02am - New York City Mayor Rudolph Giuliani urges New Yorkers to stay at home and orders an evacuation of the area south of Canal Street.
11.18am - American Airlines reports it has lost two aircraft. American Flight, a Boeing 767 flying to Boston from Los Angeles, had 81 passengers and 11 crew aboard. Flight 77, a Boeing 757 en route from Washington's Dulles International Airport to Los Angeles, had 58 passengers and six crew members aboard. Flight 11 slammed into the North Tower. Flight 77 hit the Pentagon.
11.26am - United Airlines reports that United Flight 93, en route from Newark, New Jersey to San Francisco, California, has crashed in Pennsylvania. The airline also says that it is 'deeply concerned' about United Flight 175.
11.59am - United Airlines confirms that Flight 175, from Boston to Los Angeles, has crashed with 56 passengers and nine crew members aboard. It hit the World Trade Center's South Tower.
12.04pm - Los Angeles International Airport, the destination of three of the crashed airplanes, is evacuated.
1.27pm - A state of emergency is declared by the city of Washington.
2pm - Senior FBI sources tell CNN they are working on the assumption that the four airplanes that crashed were hijacked as part of a terrorist attack.
4.10pm - Building 7 of the World Trade Center complex is reported on fire.
5.20pm - The 47-storey Building 7 of the World Trade Center complex collapses. The evacuated building is damaged when the Twin Towers across the street collapses earlier in the day. Other nearby buildings in the area remain ablaze.
6.10pm - Giuliani urges New Yorkers to stay home Wednesday if they can.
8.30pm - President Bush addresses the nation, saying 'thousands of lives were suddenly ended by evil', and asks for prayers for the families and friends of the victims. 'These acts shattered steel, but they cannot dent the steel of American resolve', he says. The president says the US government will make no distinction between the terrorists who committed the acts and those who harbor them.
Source - CNN.com