Click here for Heather Cox Richardson's Substack diary entry for March 21, 2026.
On March 21, 1861, former U.S. senator Alexander Stephens of Georgia delivered what history has come to know as the Cornerstone Speech, explaining how the ideology and power of elite enslavers in the American South were about to usher in a new era in world history.
Speaking in Savannah, Georgia, just before he became the vice president of the Confederate States of America, Stephens set out to explain once and for all the difference between the United States and the Confederacy. That difference, he said, was human enslavement. The American Constitution had a crucial defect at its heart, he said: it based the government on the principle that humans were inherently equal. Confederate leaders had fixed that problem. They had constructed a perfect government because they had corrected the Founding Fathers’ error. The “cornerstone” on which the Confederate government rested was racial enslavement.
And then:
Less than a month after Stephens gave the Cornerstone Speech, the Confederates fired on a federal fort in Charleston Harbor, and the Civil War began.In 1863, using his authority under the war powers, Abraham Lincoln— now president of the United States— declared enslaved Americans free in the areas still controlled by the Confederates. In 1865, Congress passed and sent off to the states for ratification the Thirteenth Amendment to the Constitution, prohibiting human enslavement except as punishment for crime and giving Congress the power to enforce the amendment. The states approved the Thirteenth Amendment to the Constitution in 1865.
And finally:
Rejecting the worldview Stephens thought would come to dominate the globe, Americans used the moment in which men like Stephens reached for supremacy to enshrine the principles of the Declaration of Independence into the American Constitution. The Thirteenth, Fourteenth, and Fifteenth amendments ushered in a very different sort of new era than Stephens imagined. It was, in large part, the tearing apart of old political systems under those like Stephens that permitted the rise of new ones that redefined the United States. Stephens thought he was heralding a new world, but in fact he marked the end of an era.
The shaping of the next era belonged not to him, but to others with a clearer view of both the meaning of the United States of America, and of humanity.