Join us in Commemorating the September 17, 1787 signing of the United States Constitution
Activities start September 14 in the Student Center
Investigate some of the facts surrounding the ratification of the US Constitution.
Constitution Day (or Citizenship Day) is an American federal observance that recognizes the ratification of the United States Constitution and those who have become U.S. citizens. It is usually observed on September 17 the day the U.S. Constitutional Convention signed the Constitution in 1787. The law establishing the holiday was created in 2004 with the passage of an amendment by Senator Robert Byrd to the Omnibus spending bill of 2004.
For more information about Constitution Day, visit the Constitution Center's Constitution Day page here. To learn more about the rich history of the U.S. Constitution visit www.constitutioncenter.org. The National Constitution Center is an independent, non-partisan, and non-profit organization dedicated to increasing public understanding of, and appreciation for, the Constitution, its history, and its contemporary relevance, through an interactive, interpretive facility within Independence National Historic Park and a program of national outreach.
The Centuries of Citizenship: A Constitutional Timeline is an online experience highlighting some of the key dates and events that mark more than 200 years of our constitutional history. These timeline entries, taken as a whole, tell the evolving story of the U.S. Constitution and the continuing role that it plays in our lives. Take part in the online experience.
10 Fast Facts on the Constitution
- The U.S. Constitution was written in the same Pennsylvania State House where the Declaration of Independence was signed and where George Washington received his commission as Commander of the Continental Army. Now called Independence Hall, the building still stands today on Independence Mall in Philadelphia, directly across from the National Constitution Center.
- Written in 1787, the Constitution was signed on September 17th. But it wasn't until 1788 that it was ratified by the necessary nine states.
- The U.S. Constitution was prepared in secret, behind locked doors that were guarded by sentries.
- Some of the original framers and many delegates in the state ratifying conventions were very troubled that the original Constitution lacked a description of individual rights. In 1791, Americans added a list of rights to the Constitution. The first ten amendments became known as The Bill of Rights
- Of the 55 delegates attending the Constitutional Convention, 39 signed and 3 delegates dissented. Two of America's "founding fathers" didn't sign the Constitution. Thomas Jefferson was representing his country in France and John Adams was doing the same in Great Britain.
- Established on November 26, 1789, the first national "Thanksgiving Day" was originally created by George Washington as a way of "giving thanks" for the Constitution.
- Of the written national constitutions, the U.S. Constitution is the oldest and shortest.
- At 81, Benjamin Franklin of Pennsylvania was the oldest delegate at the Constitutional Convention and at 26, Jonathon Dayton of New Jersey was the youngest.
- The original Constitution is on display at the National Archives in Washington, D.C. When the Japanese bombed Pearl Harbor, it was moved to Fort Knox for safekeeping.
- More than 11,000 amendments have been introduced in Congress. Thirty three have gone to the states to be ratified and twenty seven have received the necessary approval from the states to actually become amendments to the Constitution.