District emancipation alone failed to end slavery, requiring civil war

Evidence

The end of slavery in the District of Columbia did not lead to white enslavers generally supporting the end of slavery. In that respect, the experiment failed. Ending chattel slavery would take a civil war and the passage of the Thirteenth Amendment. Becoming law on December 6, 1865, the Thirteenth Amendment provided: “Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.” — Dorothy A. Brown, Getting to Reparations, 117

Categorization

• QUESTION: The systemic point worth chasing: compensated emancipation in DC was framed as a ‘great experiment’ that provably failed to end slavery, an argument-relevant parallel Brown could push against moral suasion approaches.