Date of attack: 9+1+1=11
September 11 is the 254th day of the year2+5+4=11
After September 11 there are 111 days left in the year
The twin towers, standing side by side resemble 11.
The first plane to hit the towers was flight 11
New York- the 11th state added to the union
The Pentegon- 11 letters
New York City- 11 letters
Afghanistan- 11 letters
George W Bush- 11 letters
flight 77-> 65 on board, 6+5=11
Flight 11-> 92 on board- 9+2=11