On September 11, 2001, terror attacks on New York, Washington, D.C. and Pennsylvania killed almost 3,000 people. On September 12, the survivors, the families of the victims, the first-responders woke up to find their lives irrevocably altered -- as did all Americans.
Ten years later, Yahoo! is asking: How have you changed since September 11?
[Your Story: Tell us how you have changed]
Perhaps you lost someone close to you. Or the attacks compelled you to join the military or volunteer more of your time. Or, perhaps more simply, you hold your loved ones closer to you than ever before.
In honor of the victims, survivors and heroes of 9/11, the Yahoo! Contributor Network is asking readers to share their stories and memories of that day; tell us how 9/11 changed you.
Your story will be featured alongside thousands of others on the Yahoo! News 9/11 anniversary site.
Share your 9/11 memories with us on Twitter - #911remembered