Americans will today mark the first anniversary of an event few ever thought would happen. It promises to be a day of poignant emotion for many New Yorkers, underpinned by a presidential address in which Mr George Bush is expected to hammer home his message of no compromise in the war against terrorism.
The following events will take place in New York:
1 a.m.: A piper and drums will begin leading firemen and police officers, slow walking from each of the city's five boroughs, towards Ground Zero.
8.46: New York will fall silent for a minute, save for church bells tolling for 140 seconds, to mark the moment when the first aircraft hit the World Trade Centre north tower.
8.47: Governor George Pataki will read the Gettysburg Address at Ground Zero. Former mayor Rudi Giuliani will begin reading the names of the victims.
9.03: A second minute's silence to mark the moment the second aircraft hit the south tower.
9.04: Relatives of the victims will enter Ground Zero.
9.59: A third minute's silence to mark the collapse of the south tower.
10.29: A fourth minute's silence will mark the moment the north tower collapsed. Bells will toll city-wide.
4.30 p.m.: President Bush will visit Ground Zero.
7.05: An eternal flame on a sphere will be lit in Battery Park.
9.00: President Bush will make a televised address from Ellis Island.