Here is an interesting note from John Adams to his wife...

The Second Day of July 1776, will be the most memorable Epocha, in the History of America. I am apt to believe that it will be celebrated, by succeeding Generations, as the great anniversary Festival. It ought to be commemorated, as the Day of Deliverance by solemn Acts of Devotion to God Almighty. It ought to be solemnized with Pomp and Parade, with Shews, Games, Sports, Guns, Bells, Bonfires and Illuminations from one End of this Continent to the other from this Time forward forever more.

You will think me transported with Enthusiasm but I am not. I am well aware of the Toil and Blood and Treasure, that it will cost Us to maintain this Declaration, and support and defend these States. Yet through all the Gloom I can see the Rays of ravishing Light and Glory. I can see that the End is more than worth all the Means. And that Posterity will tryumph in that Days Transaction, even altho We should rue it, which I trust in God We shall not. (The Book of Abigail and John: Selected Letters of the Adams Family, 1762-1784, Harvard University Press, 1975, 142)

Another Interesting Note: John Adams and Thomas Jefferson both died on July 4, 1826 which was the 50th anniversary of the signing of the Declaration of Independence. It is said that Adams final words were, "Jefferson still lives" but in fact Thomas Jefferson had died a few hours earlier. Click Here to Read More About Thomas Jefferson and John Adams