The article states that on September 12, 2001, a day after the attacks, the world became aware of what had just happened. This date marks the moment when the magnitude of the attacks was fully understood by global public opinion.
The article establishes a clear division in contemporary history, stating that there is a life before and a life after the attacks on the World Trade Center. This distinction suggests the transformative impact these events had on global society.
It is noted that the world was never the same after this event, indicating that the attacks caused deep and lasting changes in multiple dimensions, including international security, geopolitical relations, and the daily lives of people.
