As Americans enjoy the Fourth of July holiday, I hope we take a few minutes to remember what the Fourth of July is: America’s Independence Day, celebrating our Declaration of Independence, in which we declared ourselves, in Lincoln’s words, “a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.”

The fireworks would be today if John Adams had his way. It was on July 2, 1776, that the Continental Congress voted to declare independence from Great Britain. On July 4 Congress approved the final text of the Declaration. As Adams predicted in a letter to his wife Abigail:

The second day of July, 1776, will be the most memorable epoch 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 shows, games, sports, guns, bells, bonfires, and illuminations, from one end of this continent to the other, from this time forward forever more.

The Declaration of Independence, written by Thomas Jefferson, is the most eloquent libertarian essay in history, especially its philosophical core:

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. — 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.

Jefferson moved smoothly from our natural rights to the right of revolution:

Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security. 

The ideas of the Declaration, given legal form in the Constitution, took the United States of America from a small frontier outpost on the edge of the developed world to the richest country in the world in scarcely a century. The country failed in many ways to live up to the vision of the Declaration, notably in the institution of chattel slavery. But over the next two centuries that vision inspired Americans to extend the promises of the Declaration — life, liberty, and the pursuit of happiness — to more and more people. That process continues to the present day, as with the Supreme Court’s ruling for equal marriage freedom last year.

At the very least this weekend, if you’ve never seen the wonderful film 1776, watch it late on July 4 (actually 1:00 am EDT on July 5) on TCM.