September 11 2014
Patriot Day and National Day of Service and Remembrance
September 11 of each year, designated in memory of the 2,977 killed in the September 11, 2001 terrorist attacks.
Initially, the day was called the Prayer and Remembrance for the Victims of the Terrorist Attacks on September 11, 2001.
By presidential decree, the American flag is flown at half-staff at the White House and on all U.S. Governement buildings and establishments throughout the world; flags are also encouraged to be displayed on individual American homes.
Because Patriot Day is not a federal holiday, schools and business do not close in observance of the occasion, although memorial ceremonies for the victims are held.