---
title: "Thirteenth Amendment — AP African American Studies Guide"
description: "The Thirteenth Amendment (1865) permanently abolished slavery except as punishment for a crime, freeing 4 million African Americans. Key to Topics 2.24 and 3.1."
canonical: "https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment"
type: "key-term"
subject: "AP African American Studies"
unit: "Unit 2"
---

# Thirteenth Amendment — AP African American Studies Guide

## Definition

The Thirteenth Amendment, ratified in 1865, permanently abolished slavery in the United States except as punishment for a crime, freeing about four million African Americans and marking the first time the words "slave" and "slavery" appeared in the Constitution.

## What It Is

The Thirteenth Amendment is the constitutional amendment, ratified in 1865, that permanently abolished [slavery](/ap-african-american-studies/unit-2/23-the-civil-war-and-black-communities/study-guide/izqwf48keJf083W0 "fv-autolink") and involuntary servitude in the United States, with one famous carve-out, "except as a punishment for crime." It freed roughly four million African Americans, nearly a third of the South's population.

Here's the detail the CED really wants you to know. The original Constitution protected slavery in Article I and Article IV but deliberately avoided the words "slave" or "slavery" (an early draft used "slave," and the framers cut it). The Thirteenth Amendment is the first place those words actually appear in the Constitution, and they appear in order to destroy the institution. It also closed the gap the [Emancipation Proclamation](/ap-african-american-studies/key-terms/emancipation-proclamation "fv-autolink") left open. The Proclamation was a wartime order that only applied to [Confederate states](/ap-african-american-studies/unit-2/24-commemorating-the-ongoing-struggle-for-freedom/study-guide/inq1tAviyl4I0nza "fv-autolink") still in rebellion, so legal slavery continued in four border states until the Thirteenth Amendment was ratified in 1865.

## Why It Matters

This term bridges [Unit 2](/ap-african-american-studies/unit-2 "fv-autolink") (Freedom, Enslavement, and Resistance) and Unit 3 (The Practice of Freedom). In Topic 2.7, it supports LO 2.7.A, explaining how American law shaped the lives and [citizenship rights](/ap-african-american-studies/key-terms/citizenship-rights "fv-autolink") of African Americans, because it reverses two centuries of slave codes and constitutional protections for slavery. In Topic 2.24, it supports LO 2.24.A as the event that officially and permanently ended legal enslavement, which is why Juneteenth and other Freedom Days commemorate it. In Topic 3.1, it supports LO 3.1.A as the first of the three Reconstruction Amendments, the legal foundation that the Fourteenth and Fifteenth Amendments build on. If the exam asks how freedom became law in America, this amendment is the hinge of the whole answer.

## Connections

### [Emancipation Proclamation (Unit 2)](/ap-african-american-studies/key-terms/emancipation-proclamation)

The Proclamation (1863) declared [freedom](/ap-african-american-studies/unit-2/21-legacies-of-resistance-in-african-american-art-and-photography/study-guide/i6dgSRQeJckJJ4Qe "fv-autolink") only in Confederate states still at war, so it left slavery legal in the four border states. The Thirteenth Amendment finished the job in 1865 by abolishing slavery everywhere, permanently, in the Constitution itself.

### Slave Codes and the Constitution's Silence (Unit 2)

[Topic 2.7](/ap-african-american-studies/unit-2/7-slave-codes-and-landmark-cases/study-guide/LJ3LluHSLHD8k3xj "fv-autolink") shows that Article I and Article IV protected slavery without ever naming it. The Thirteenth Amendment breaks that silence. The words "slave" and "slavery" enter the Constitution for the first time, in the sentence that abolishes the institution.

### Juneteenth and General Order No. 3 (Unit 2)

[Juneteenth](/ap-african-american-studies/key-terms/juneteenth "fv-autolink") marks June 19, 1865, when enslaved people in Galveston, Texas learned they were free. Contemporary Juneteenth celebrations honor both the Proclamation and the Thirteenth Amendment because the gap between them shows freedom arrived in stages, not all at once.

### Fourteenth and Fifteenth Amendments (Unit 3)

Think of the Reconstruction Amendments as a three-step sequence. The Thirteenth ends slavery, the Fourteenth grants birthright citizenship and equal protection, and the Fifteenth gives Black men the vote. Abolition was the necessary first step, but it alone didn't define citizenship or political rights.

## On the AP Exam

Multiple-choice questions tend to test three things. First, sequencing and scope, like why the Thirteenth Amendment (not the Emancipation Proclamation) actually ended legal slavery, including in the border states. Second, the "except as a punishment for a crime" clause, which is the answer when a question asks why the amendment didn't immediately end all forms of forced labor. Third, demographic impact, since freeing four million people (a third of the South's population) directly set up Reconstruction-era developments. No released FRQ has used this term verbatim, but it anchors the kind of argument the project and short-answer questions reward, especially explaining how Freedom Days like Juneteenth commemorate the staged, uneven arrival of legal freedom. Know the date (1865), the exception clause, and exactly what the Emancipation Proclamation did and did not do.

## Thirteenth Amendment vs Emancipation Proclamation

The Emancipation Proclamation (1863) was a wartime executive order, not a law of permanent effect, and it only applied to Confederate states still in rebellion. It freed no one in the four loyal border states. The Thirteenth Amendment (1865) is a constitutional amendment that abolished slavery everywhere in the U.S., permanently. Quick test: if the question is about the official, permanent, nationwide end of slavery, the answer is the Thirteenth Amendment.

## Key Takeaways

- The Thirteenth Amendment, ratified in 1865, permanently abolished slavery in the United States and freed about four million African Americans, nearly a third of the South's population.
- It contains an exception clause allowing involuntary servitude "as a punishment for a crime," which is why the exam can ask why it didn't immediately end all forms of forced labor.
- The words "slave" and "slavery" appear in the Constitution for the first time in this amendment, even though Articles I and IV had referenced slavery without naming it.
- The Emancipation Proclamation only freed enslaved people in Confederate states at war; legal slavery continued in four border states until the Thirteenth Amendment was ratified.
- It is the first of the three Reconstruction Amendments, followed by the Fourteenth (citizenship and equal protection) and the Fifteenth (Black men's voting rights).
- Juneteenth and other Freedom Days commemorate the gap between the 1863 Proclamation and 1865 ratification, showing that freedom arrived in stages.

## FAQs

### What did the Thirteenth Amendment do?

Ratified in 1865, it permanently abolished slavery and involuntary servitude in the United States, except as punishment for a crime. It freed approximately four million African Americans, nearly a third of the South's population.

### Didn't the Emancipation Proclamation already end slavery?

No. The Proclamation (1863) was a wartime order that only declared freedom in Confederate states still in rebellion. Slavery stayed legal in the four border states until the Thirteenth Amendment was ratified in 1865.

### Why does the Thirteenth Amendment have an exception for crime?

The text abolishes slavery "except as a punishment for crime whereof the party shall have been duly convicted." This clause is the standard exam answer for why the amendment did not immediately end every form of forced labor in the United States.

### How is the Thirteenth Amendment different from the Fourteenth and Fifteenth?

The Thirteenth (1865) abolished slavery, the Fourteenth (1868) established birthright citizenship and equal protection, and the Fifteenth (1870) protected Black men's right to vote. Together they're the Reconstruction Amendments tested in Topic 3.1.

### Was the Thirteenth Amendment the first time the word slavery appeared in the Constitution?

Yes. Article I and Article IV referred to slavery but deliberately avoided the words "slave" and "slavery" (an early draft used "slave" but it was removed). Those words first appear in the Thirteenth Amendment, which abolished the institution.

## Related Study Guides

- [2.24 Freedom Days: Commemorating the Ongoing Struggle for Freedom](/ap-african-american-studies/unit-2/24-commemorating-the-ongoing-struggle-for-freedom/study-guide/inq1tAviyl4I0nza)

## Structured Data

```json
{"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment#resource","name":"Thirteenth Amendment — AP African American Studies Guide","url":"https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-06-11T20:45:14.246Z","isPartOf":{"@type":"Collection","name":"AP African American Studies Key Terms","url":"https://fiveable.me/ap-african-american-studies/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment#term","name":"Thirteenth Amendment","description":"The Thirteenth Amendment, ratified in 1865, permanently abolished slavery in the United States except as punishment for a crime, freeing about four million African Americans and marking the first time the words \"slave\" and \"slavery\" appeared in the Constitution.","url":"https://fiveable.me/ap-african-american-studies/key-terms/thirteenth-amendment","inDefinedTermSet":{"@type":"DefinedTermSet","name":"AP African American Studies Key Terms","url":"https://fiveable.me/ap-african-american-studies/key-terms"}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What did the Thirteenth Amendment do?","acceptedAnswer":{"@type":"Answer","text":"Ratified in 1865, it permanently abolished slavery and involuntary servitude in the United States, except as punishment for a crime. It freed approximately four million African Americans, nearly a third of the South's population."}},{"@type":"Question","name":"Didn't the Emancipation Proclamation already end slavery?","acceptedAnswer":{"@type":"Answer","text":"No. The Proclamation (1863) was a wartime order that only declared freedom in Confederate states still in rebellion. Slavery stayed legal in the four border states until the Thirteenth Amendment was ratified in 1865."}},{"@type":"Question","name":"Why does the Thirteenth Amendment have an exception for crime?","acceptedAnswer":{"@type":"Answer","text":"The text abolishes slavery \"except as a punishment for crime whereof the party shall have been duly convicted.\" This clause is the standard exam answer for why the amendment did not immediately end every form of forced labor in the United States."}},{"@type":"Question","name":"How is the Thirteenth Amendment different from the Fourteenth and Fifteenth?","acceptedAnswer":{"@type":"Answer","text":"The Thirteenth (1865) abolished slavery, the Fourteenth (1868) established birthright citizenship and equal protection, and the Fifteenth (1870) protected Black men's right to vote. Together they're the Reconstruction Amendments tested in Topic 3.1."}},{"@type":"Question","name":"Was the Thirteenth Amendment the first time the word slavery appeared in the Constitution?","acceptedAnswer":{"@type":"Answer","text":"Yes. Article I and Article IV referred to slavery but deliberately avoided the words \"slave\" and \"slavery\" (an early draft used \"slave\" but it was removed). Those words first appear in the Thirteenth Amendment, which abolished the institution."}}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"AP African American Studies","item":"https://fiveable.me/ap-african-american-studies"},{"@type":"ListItem","position":2,"name":"Key Terms","item":"https://fiveable.me/ap-african-american-studies/key-terms"},{"@type":"ListItem","position":3,"name":"Unit 2","item":"https://fiveable.me/ap-african-american-studies/unit-2"},{"@type":"ListItem","position":4,"name":"Thirteenth Amendment"}]}]}
```