What is Citizenship Day?
Answer:
Citizenship Day, which falls on September 17th (unless it falls on a weekend or other holiday), is officially known as "Constitution and Citizenship Day." The federal holiday was created in 2004 to commemorate the signing of the U.S. Constitution on the same day in 1787. It is also a day to celebrate U.S. citizenship and recognize all those who, by birth or through naturalization, have become American citizens.
Constitution and Citizenship Day is the first day of Constitution Week (September 17-23).