At Volokh Conspiracy, Randy Barnett: What the Declaration of Independence Said and Meant - It officially adopted the American Theory of Government: First Come Rights; Then Comes Government to Secure These Rights. From the introduction:
The Declaration of Independence used to be read aloud at public gatherings every Fourth of July. Today, while all Americans have heard of it, all too few have read more than its second sentence. Yet the Declaration shows the natural rights foundation of the American Revolution, and provides important information about what the founders believed makes a constitution or government legitimate. It also raises the question of how these fundamental rights are reconciled with the idea of "the consent of the governed," another idea for which the Declaration is famous.
The adoption of the Declaration, and the public affirmation of its principles, led directly to the phased in abolition of slavery in half of the United States by the time the Constitution was drafted—as well as the abolition of slavery in the Northwest Territory. The Rhode Island gradual abolition law of 1784 read:
All men are entitled to Life, Liberty, and the Pursuit of Happiness, and the holding Mankind in a State of Slavery, as private property, which has gradually obtained by unrestrained Custom and the Permission of the Law, is repugnant to this Principle, and subversive of the Happiness of Mankind.
Later, the Declaration also assumed increasing importance in the struggle to abolish slavery. It became a lynchpin of the moral and constitutional arguments of the nineteenth-century abolitionists. As one New Yorker opposed to slavery wrote in 1797:
The right of property which every man has to his personal liberty is paramount to all the laws of property…. All I contend for at present is, that no claims of property can ever justly interfere with, or be suffered to impede the operation of that noble and eternal principle, that "all men are endowed by their Creator with certain unalienable rights—and that among these are life, liberty, and the pursuit of happiness.
The Declaration was much relied upon by Abraham Lincoln and many others before him …
Posted at 4:21 PM