Two most important documents in the history of the human race.

[TomSlick]

32. I agree.

While the Magna Carta was no doubt important, I have never taken an oath to defend the Magna Carta.

That being said, If you're looking for predecessor documents for the Declaration of Independence and the Constitution, I suggest the Scottish Declaration of Arbroath of 1320.

"As long as a hundred of us remain alive, never will we on any conditions be subjected to the lordship of the English. It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom alone, which no honest man gives up but with life itself"