There are many reasons that made the United States of America a great nation, the spirit of freedom, capitalism, protection of minorities and so on. They were the first to reject a monarchy in modern society & declare themselves a democracy after beating fair & square the greatest Empire in history (Britain). They helped defeat one of the most evil & dark regimes in the history of the earth: the Third Reich. They are probably the only nation that can defeat the dark forces of Global Islamists which are creating havoc on every nation today taking advantage of the collapse of another evil: The Iron Wall of Communism.
But ALL of the above is because the Founding Fathers of America created what I personally believe is the single greatest document ever written by Man that has benefited Mankind worldwide: The Bill Of Rights.
Read the full text here: Bill of Rights
This one document alone separates America from the rest. This is the only instance where the Founding Fathers of a nation had the foresight about Government’s tendency to impinge the rights of citizens and hence decided to set clear limits on Government actions in regard to personal/civil liberties.
What is so amazing about the Bill of Rights is that it FOLLOWS directly from the principle set forth in the Declaration of Independence (which I persoanlly consider to be the greatest single sentence ever crafted by Mankind)
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.