Celebrated on 09/17/2026
Constitution Day and Citizenship Day is observed on September 17, the same day the U.S. Constitution was signed in 1787. In 2004, Senator Robert Byrd added a provision to an omnibus spending bill requiring that all educational institutions receiving federal funds teach about the Constitution on this day.
Constitution Day and Citizenship Day commemorates the signing of the U.S. Constitution on September 17, 1787. The holiday originated as "I Am an American Day" in 1940, created by Congress to celebrate new citizens. In 1952, President Harry Truman signed a bill changing the name to "Citizenship Day" and moving it to September 17. Later, in 2004, Senator Robert Byrd successfully added an amendment to an omnibus spending bill that renamed the day "Constitution Day and Citizenship Day" and mandated that all educational institutions receiving federal funds provide educational programming on the Constitution.
Initially, the day was primarily a celebration of citizenship. Over time, it evolved to emphasize the Constitution itself. The 2004 amendment significantly expanded its observance, requiring public schools and colleges to teach about the Constitution. Today, federal agencies, schools, and organizations hold events such as naturalization ceremonies, lectures, and essay contests. Many schools incorporate lessons on the Constitution into their curricula on or around September 17.
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