Constitution Day commemorates the formation and signing of the U.S. Constitution by thirty-nine brave men on September 17, 1787, recognizing all who are born in the U.S. or by naturalization, have become citizens. On Constitution Day, Americans are encouraged to observe this important day in our nation's history by celebrating activities, learning, and demonstrations of our Love for the United States of America and the Blessings of Freedom Our Founding Fathers secured for us.