Great Seal of the United States Ongoing Exhibit … On July 4, 1776, just hours after adopting the Declaration of Independence, the Continental Congress tasked Benjamin Franklin, Thomas Jefferson, and John Adams with creating a national seal. As members of the First Great Seal Committee, each man proposed designs for a national emblem that reflected the independence and aspirations of the new nation. The task proved difficult, and ultimately it took more than three committees and six years to complete the …