9/11: A timeline of the events of the September 11 attacks
Briefly

"Planning for the September 11 attacks began years before 2001, initiated by Khalid Sheikh Mohammed, who sought to target multiple locations using hijacked planes."
"The Bojinka plot was an earlier attempt and served as a foundation for the future modifications that would lead to the 9/11 attacks."
"After presenting his plan to Osama bin Laden in 1996, Khalid Sheikh Mohammed redesigned it to gain approval, resulting in a fatal focus on American targets."
"By early 2001, the hijackers had completed their flight training and were poised to execute the attacks, illustrating the meticulous nature of their planning."
Read at english.elpais.com
[
]
[
|
]