September 17 is Constitution Day and Citizenship Day (Constitution Day). This day commemorates the September 17, 1787 signing of the United States Constitution. Also know as Citizenship Day, Constitution Day is an American holiday honoring the day 39 delegates to the Constitutional Convention signed the United States Constitution.

It is a federal observance that recognizes the adoption of the United States Constitution and those who have become U.S. citizens.  It is observed annually.

At Palomar College, Constitution Day is hosted by the Financial Aid Office, and is usually held in the Student Union Quad or the Financial Aid Office on September 17th, or an adjacent weekday when the 17th falls on a weekend.  Free constitution booklets are available to all participants.

To read more about the Constitution, please visit https://www.archives.gov/founding-docs/constitution 

1. The Constitution was written in 1787 and signed on September 17, 1787.  It was ratified in 1788. It was written in the Pennsylvania State House, now called Independence Hall
2. Of the 55 Delegates attending the Constitutional Convention, 39 signed and 3 delegates dissented
3.  The Constitution established a system of Checks and Balances
4. The first state to ratify the Constitution was Delaware
5. The average age of the members was 44 years old
6. George Washington presided over the Constitutional Convention
7. The first 10 Amendments of the Constitution is called the Bill of Rights
8. A copy of the Constitution is on Display at the National Archives in Washington, D.C. The original is also at the National Archives but is not on Display

Source: https://constitutioncenter.org/education/classroom-resource-library/classroom/constitution-fast-facts