Constitution Day is a day dedicated to commemorating the signing of the United States Constitution, and to honoring those Americans who have upheld it ever since. The Constitution was signed on September 17, 1787; in memory of this momentous event, Constitution Day is observed on September 17. It also marks the official beginning of Constitution Week, which is observed each year from September 17 to September 23.
History of Constitution Day
While the history of Constitution Day begins with the signing of the Constitution in 1787, the day was formally recognized by joint resolution of Congress on February 29, 1952. A subsequent joint resolution, passed on August 2, 1956, requested that the President proclaim the week beginning September 17 and ending September 23 as "Constitution Week." .
In 2004, as part of the Consolidated Appropriations Act of 2005, Congress mandated that any educational institution receiving Federal funding must observe Constitution Day with an appropriate educational program pertaining to the United States Constitution.  Prior to the passage of this act, the day was formally known only as Citizenship Day.