Today is Constitution Day and Citizenship Day

Today, Sept. 17, 2018, is Constitution Day and Citizenship Day, reports the National Day Calendar. This is the American federal observance that commemorates the adoption of the Constitution of the United States and those who have become United States citizens. On this day members of the U.S. Constitutional Convention signed the Constitution in 1787. The National Day Calendar is the authoritative source for fun, unusual and unique National Days.