Augmented reality, growing rapidly, will be mobile first, and will go on to change the face of business and advertising.
The Continental Congress approved the final wording of the Declaration of Independence on July 4, 1776. They'd been working on it for a couple of days after the draft was submitted on July 2nd and finally agreed on all of the edits and changes.
The Declaration became official when Congress voted for it on July 4; signatures of the delegates were not needed to make it official. The handwritten copy of the Declaration of Independence that was signed by Congress is dated July 4, 1776. The signatures of fifty-six delegates are affixed; however, the exact date each person signed it has long been the subject of debate.