September 11 was a series of attacks by al-Qaeda ~ Four planes were hijacked to be flown into buildings. Two crashed into the World Trade Center in NYC, a third plane was crashed into the Pentagon in VA, and the fourth plane crashed near Shanksville, PA after its passengers tried to overcome the hijackers. The attacks claimed the lives of 2,996 people. It was the deadliest incident for firefighters and policemen in the history of the US, with 343 killed, 73 injured.
I will never forget sitting on my sofa when suddenly the show I was watching was interrupted... I pretty much lived on that sofa for the next few days/nights... my heart still sinks when I think of what I saw and heard... NO, I WILL NEVER FORGET!
World Trade Center (Twin Towers) --On September 20, 1962, the Port Authority announced the selection of Minoru Yamasaki as lead architect and Emery Roth & Sons as associate architects. Yamasaki devised the plan to incorporate twin towers; Yamasaki's original plan called for the towers to be 80 stories tall. To meet the Port Authority's requirement for 10,000,000 square feet (930,000 m2)) of office space, the buildings would each have to be 110 stories tall.