13th Amendment

This page analyzes a single policy using structured scoring, historical evidence, source quality, and measurable outcomes.

PositiveEvidence: StrongData Quality: Complete

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Summary

Abolished slavery and involuntary servitude except as punishment for crime.

How to Read This Record

Impact Reading

Very high documented impact

Evidence Base

Strong evidence from Government sources.

Data Completeness

Complete record with 3 sources and 1 metric.

Outcome Summary

Ended legal slavery nationwide.

Impact Scores

This score is a structured measure of how directly and materially this policy affected Black communities, weighted by evidence, durability, and equity. Harm offset reduces the total score.

Total Impact Score

Directness

How explicitly the policy targeted or affected Black communities.

Material Impact

The practical real-world effect on conditions, rights, or outcomes.

Evidence

Strength of sourcing and historical support for the assessment.

Durability

How lasting the effects of the policy were over time.

Equity

Whether the policy advanced fairness, inclusion, or equal access.

Harm Offset

Any offsetting harms, limitations, exclusions, or contradictory effects that reduce the total.

Scoring Notes: Core constitutional abolition of slavery.

Metrics

Legal status of slavery

Black Americans • United States

Before

1.00

1865 • binary

After

0.00

1865 • binary

Methodology: Represents the formal legal abolition of slavery at the federal constitutional level. 1 indicates legal existence of slavery, 0 indicates abolition.