Perhaps there are those that do not realize that September 17 is Constitution Day. This day recognizes the adoption of the United States Constitution and those who have become U.S. citizens. It is normally observed on September 17 which is the day the U.S. Constitutional Convention signed the Constitution in 1787 in Philadelphia. The day has been around awhile. As I get older, it seems less people understand the Constitution much less celebrate the day it was signed.