Formula (About 9/11)

The date of the attack: 9/11
9+1+1=11
September 11th is the 254 day of the year
2+5+4=11
After 9/11, there are 111 days left to the end of the year.
119 is the area code for Iraq/Iran
1+1+9=11
Twin Towers standing side by side looks like 11.
The first plane that hit the towers was flight 11.
New York was the 11th state added to the union.

New York City = 11 letters
Afghanistan = 11 letters
The Pentagon = 11 letters
Flight 11 = 92 on board, 9+2=11
Flight 77 = 65 on board, 6+5=11
2nd plane that hit = 9:02 a.m. 9+2=11

~Cool huh~