In the 19th century it became fashionable among pro-slavery advocates to deride the idea that the Declaration of Independence’s ringing assertion that “All men are created equal” applied to blacks.
In the Dred Scott decision the majority of the Supreme Court stated that it was a simple historical fact that blacks were not included:
The general words above quoted would seem to embrace the whole human family, and if they were used in a similar instrument at this day would be so understood. But it is too clear for dispute that the enslaved African race were not intended to be included, and formed no part of the people who framed and adopted this declaration, for if the language, as understood in that day, would embrace them, the conduct of the distinguished men who framed the Declaration of Independence would have been utterly and flagrantly inconsistent with the principles they asserted, and instead of the sympathy of mankind to which they so confidently appealed, they would have deserved and received universal rebuke and reprobation.
Yet the men who framed this declaration were great men — high in literary acquirements, high in their sense of honor, and incapable of asserting principles inconsistent with those on which they were acting. They perfectly understood the meaning of the language they used, and how it would be understood by others, and they knew that it would not in any part of the civilized world be supposed to embrace the negro race, which, by common consent, had been excluded from civilized Governments and the family of nations, and doomed to slavery. They spoke and acted according to the then established doctrines and principles, and in the ordinary language of the day, and no one misunderstood them. The unhappy black race were separated from the white by indelible marks, and laws long before established, and were never thought of or spoken of except as property, and when the claims of the owner or the profit of the trader were supposed to need protection.
Interestingly enough, John C. Calhoun, statesman and chief political theorist in defense of slavery, disagreed with this line of pro-slavery argument. While lamenting the inclusion of the “All men are created equal” phrase in the Declaration, he had no doubt that it was intended to apply to blacks:
They have been made vastly more so by the dangerous error I have attempted to expose, that all men are born free and equal, as if those high qualities belonged to man without effort to acquire them, and to all equally alike, regardless of their intellectual and moral condition. The attempt to carry into practice this, the most dangerous of all political error, and to bestow on all, without regard to their fitness either to acquire or maintain liberty, that unbounded and individual liberty supposed to belong to man in the hypothetical and misnamed state of nature, has done more to retard the cause of liberty and civilization, and is doing more at present, than all other causes combined. While it is powerful to pull down governments, it is still more powerful to prevent their construction on proper principles. It is the leading cause among those…which have been overthrown, threatening thereby the quarter of the globe most advanced in progress and civilization with hopeless anarchy, to be followed by military despotism. Nor are we exempt from its disorganizing effects. We now begin to experience the danger of admitting so great an error to have a place in the declaration of our independence. For a long time it lay dormant; but in the process of time it began to germinate, and produce its poisonous fruits. It had strong hold on the mind of Mr. Jefferson, the author of that document, which caused him to take an utterly false view of the subordinate relation of the black to the white race in the South; and to hold, in consequence, that the former, though utterly unqualified to possess liberty, were as fully entitled to both liberty and equality as the latter; and that to deprive them of it was unjust and immoral. To this error, his proposition to exclude slavery from the territory northwest of the Ohio may be traced, and to that of the ordinance of ’87, and through it the deep and dangerous agitation which now threatens to ingulf, and will certainly ingulf, if not speedily settled, our political institutions, and involve the country in countless woes.
Abraham Lincoln rose in defense of the Founders and the Declaration. Lincoln has attained such a folksy image in American folklore that we lose sight of how incisive a mind he possessed. It was on full display in this passage from a speech that he gave on June 26, 1857 on the Dred Scott decision: