Constitution Day (Citizenship Day) Date in the current year: September 17, 2024

The delegates to the Constitutional Convention signed the final version of the United States Constitution on September 17, 1787. In 1911, Iowa became the first state to recognize the anniversary of this event as Constitution Day. In 1917, a committee formed by the Sons of the American Revolution started promoting this day.

The second name of the holiday, Citizenship Day, is concerned with I am an American Day. I am an American Day was created in the 1940s as a holiday to celebrate United States citizenship. It was initially observed on the third Sunday in May. In 1952, its observation was moved to September 17. The holiday was renamed Citizenship Day.

The law establishing the present holiday was enacted in 2004. On this day, all federal agencies and publicly funded educational establishments are required to provide educational programming on the history of the American Constitution. When Constitution Day falls on a weekend or another holiday, its observation is moved to the closest weekday.