September 11 marks a tragic day in U.S. history, but the date has also been chosen to honor those who lost their lives in the terrorist attacks of September 11, 2001.

Patriot Day honors the memory of the nearly 3,000 innocent victims who died in the September 11, 2001, terrorist attacks. Each year Americans dedicate this day to remembering those who died and to the first responders who risked their own lives to save others.

On December 18, 2001, President George W. Bush officially designated September 11th as Patriot Day.

The day has also been designated as a day that the U.S. flag should be flown at half-staff from sunrise to sundown, not just until noon as is done on Memorial Day. In addition, the people of the United States are asked to observe a moment of silence on Patriot Day in remembrance of the victims