The 25th anniversary of the Sept. 11 attacks has sparked reflection on how Americans remember such a pivotal event. For those who lived through it, the day remains vivid in their memories—marked by shock, fear, and the unforgettable images of the second plane hitting the World Trade Center and the collapse of the second tower. The National September 11 Memorial & Museum estimates that about 100 million Americans have been born since the attacks, meaning a large portion of the population now learns about 9/11 through photos, documentaries, memorials, and stories from those who experienced it firsthand. Experts in collective memory suggest that societies do not just preserve the past but continually reinterpret it through stories, institutions, and political debates. The creation of the Department of Homeland Security in the aftermath of 9/11 is one example of how the event shaped both policy and culture, aimed at addressing intelligence failures exposed by the attacks. Each year, the anniversary of 9/11 is marked by events such as reading the names of the victims, lighting memorials, and sharing stories of first responders—reminders of the human loss and bravery that defined the day. A 2016 Pew Research Center survey found that 76% of Americans listed 9/11 as one of the 10 most significant events of their lives, with nearly 1 in 5 citing the nation’s immediate response as a moment of pride. The attacks had far-reaching consequences, including the U.S. invasion of Afghanistan, which lasted 20 years, and the invasion of Iraq, despite no connection between Saddam Hussein’s regime and 9/11. The aftermath also brought increased government surveillance, expanded presidential power, and reduced freedom of dissent. Muslim Americans, in particular, faced heightened suspicion and hostility in the years that followed. Over time, the meaning of 9/11 has shifted, sometimes competing with the original experience of the day. For some, it is remembered as a national trauma that led to policies once considered unthinkable. For others, it symbolizes American resilience and military strength. Still others see it as a story of ordinary people showing extraordinary courage in the face of tragedy. As time has passed, the place of 9/11 in the national story has evolved, shaped by other major events like Hurricane Katrina, the 2008 financial crisis, the election of the first Black president, the rise of Donald Trump, the violence of January 6, 2021, and the global pandemic. While the event remains significant, its role in the broader narrative has shifted as life and the world have continued to change.