Air Force One is the official call sign for any Air Force aircraft carrying the President of the United States, though the term most commonly refers to the two Boeing 747 jets bearing the iconic Water and Steel Blue livery.

The Boeing 747 Air Force One, houses an executive suite and private office for the President, as well as a medical annex and communications room featuring at least 19 televisions and 87 telephones. The plane can fuel in midair, contains countermeasures against anti-aircraft missiles and features special shielding to protect the electronics from an electromagnetic pulse resulting from a nuclear attack.

The Presidential Seal is synonymous with presidential authority and executive power. However, there were many different iterations, modifications, and alterations that ultimately led to the modern version that is universally recognized today. The origins of the presidential seal can be traced back to the Continental Congress. In 1782, Secretary of the Continental Congress Charles Thomson used elements from three different committees to produce his design. He then shared his sketch with William Barton, who added some minor changes to Thomson’s creation. The result was the Great Seal of the United States, which would be used to generally represent the federal government moving forward.