The independent existence of the United States was based on certain truths:
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—That to secure these Rights, Governments are instituted among Men, deriving their just Powers from the Consent of the Governed, that whenever any Form of Government becomes destructive of these Ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its Foundation on such Principles, and organizing its Powers in such Form, as to them shall seem most likely to effect their Safety and Happiness.
On that foundation, the American Founders established a system of government based on delegated, enumerated, and thus limited powers.

The American Founders did not pluck those truths out of thin air, nor did they simply invent the principles of American government. They drew from their knowledge of thousands of years of human history, during which many peoples struggled for liberty and limited government. There were both defeats and victories along the way. The results were distilled in the founding documents of the American experiment in limited government: the Declaration of Independence, the Articles of Confederation, the state constitutions, and the Constitution of the United States.