This year, September 17th is designated as Constitution Day in the United States. The designation is a result of The Consolidated Appropriations Act of 2005. Senator Robert C. Byrd's leadership was instrumental in the passage of the act and, as such, the designation of the event.
As C-SPAN's website states:
The Consolidated Appropriations Act of 2005 states that educational institutions receiving federal funds shall hold an educational program for its students. The program is to be about the United States Constitution and held on September 17 each year or during the week before or after.
On September 16th, 2005, Sen. Byrd gave a speech on the importance of the United States Constitution at Shepherd University. His remarks begin near the 11:30 mark of the video.