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.
Declaration of Independence (1776) Citation: Engrossed copy of the Declaration of Independence, August 2, 1776; Miscellaneous Papers of the Continental Congress, 1774-1789; Records of the Continental and Confederation Congresses and the Constitutional Convention, 1774-1789, Record Group 360; National Archives.