A quarter century after the September 11, 2001 attacks, 100 million Americans are too young to remember the day that changed our city and nation forever. It is our shared promise — made 25 years ago — to never forget so those born after 9/11 learn its significance and enduring legacy. As we commemorate this anniversary, a new generation will learn about the unimaginable loss we experienced and the inspiring stories of bravery, compassion, unity, and service that we witnessed, and have rippled through the decades. -9/11 Memorial & Museum