9/11 Attacks Among 'Most Important Historic Events' in US Adults' Lifetimes: Poll The September 11 attacks have had a profound and lasting impact on American society and politics.
Nearly two decades after the coordinated terrorist strikes on the World Trade Center and the Pentagon, the trauma and shock caused by those events remain etched in the collective memory of Americans.
Understanding the Significance of 9/11 in US History The significance of 9/11 can be measured by its impact on American national identity and foreign policy.