---
title: "Great Purge — AP World History Definition & Exam Guide"
description: "The Great Purge (1936-1938) was Stalin's campaign of show trials, executions, and gulag sentences that cemented his control of the USSR. Key for AP World Unit 7."
canonical: "https://fiveable.me/ap-world/key-terms/great-purge"
type: "key-term"
subject: "AP World History: Modern"
unit: "Unit 7"
---

# Great Purge — AP World History Definition & Exam Guide

## Definition

The Great Purge (1936-1938) was Joseph Stalin's campaign of political repression in the Soviet Union, using show trials, secret police arrests, mass executions, and gulag labor camps to eliminate rivals and terrify the population into obedience, a key example of communist state consolidation in AP World Unit 7.

## What It Is

The Great Purge was [Stalin](/ap-world/key-terms/stalin "fv-autolink")'s systematic elimination of anyone he saw as a threat, real or imagined, between roughly 1936 and 1938. Old Bolsheviks who had helped lead the 1917 [revolution](/ap-world/unit-5/continuity-change-industrial-age/study-guide/h7nWPN3Ym7RP14VxaKfe "fv-autolink") were forced to confess to invented crimes at public show trials, then executed. The secret police (NKVD) arrested millions of ordinary citizens on flimsy charges. Hundreds of thousands were shot, and millions more were shipped to gulags, the brutal forced-labor camps scattered across Siberia. Even the Red Army wasn't safe. Stalin purged most of his top military officers, which would come back to haunt the USSR when Germany invaded in 1941.

For [AP World](/ap-world "fv-autolink"), the Great Purge is your go-to example of how a communist state restricted personal freedoms and used terror as a tool of governance. The Russian Revolution promised to liberate workers from oppression. Two decades later, the state it produced was executing its own founding revolutionaries. That irony is exactly the kind of complexity AP World wants you to notice when you analyze how new states consolidated power after 1900.

## Why It Matters

The Great Purge lives in [Topic 7.1](/ap-world/unit-7/shifting-power-after-1900/study-guide/ZUAXtdeXfQeNqXhJxiEg "fv-autolink") (Shifting Power After 1900) and supports learning objective AP World 7.1.A, which asks you to explain how internal and external factors contributed to change in states after 1900. The collapse of the [Russian Empire](/ap-world/key-terms/russian-empire "fv-autolink") led to communist revolution, and the Great Purge shows what that revolution hardened into under Stalin: a one-party state willing to kill its own people to stay in power. It connects to the Governance theme, and it gives you concrete evidence for any argument about how 20th-century states (especially authoritarian ones) challenged or reshaped the existing political and social order. If a prompt asks how new regimes consolidated power internally, the Great Purge is one of the cleanest examples in the entire course.

## Connections

### [Bolshevik Revolution (Unit 7)](/ap-world/key-terms/bolshevik-revolution)

The 1917 revolution created the Soviet state; the Great Purge is what happened when Stalin turned that state against its own creators. Many of the 'Old [Bolsheviks](/ap-world/key-terms/bolsheviks "fv-autolink")' executed in the show trials had stood beside Lenin in 1917. The two terms bookend the same story of revolution becoming dictatorship.

### [Cultural Revolution (Unit 8)](/ap-world/key-terms/cultural-revolution)

Mao's [Cultural Revolution](/ap-world/key-terms/cultural-revolution "fv-autolink") in China (1966-1976) followed a similar playbook of purging perceived enemies inside a communist party to protect one leader's power. Comparing the two is a classic AP move because it shows internal repression was a pattern across communist states, not a one-time Soviet event.

### World War II (Unit 7)

Stalin's purge of Red Army officers gutted Soviet military leadership right before Germany invaded in 1941. It's a direct cause-and-effect link between internal political repression and early Soviet disasters in the war, which makes it great evidence for causation essays.

### [Centralized Bureaucracy (Units 1 & 3)](/ap-world/key-terms/centralized-bureaucracy)

Land-based empires like the Russian Empire used centralized bureaucracies to control vast territories. Stalin's [USSR](/ap-world/key-terms/ussr "fv-autolink") is a continuity of that pattern taken to an extreme, with the NKVD and party apparatus enforcing loyalty in ways tsarist administrators never could. That continuity-with-intensification framing is gold for LEQs.

## On the AP Exam

No released FRQ has used 'Great Purge' verbatim, but the term earns its keep as evidence. Multiple-choice questions on Topic 7.1 often give you a source about Soviet repression or state propaganda and ask what internal factors it illustrates about post-1900 political change. On LEQs and DBQs, the Great Purge works as specific evidence for arguments about how communist or authoritarian states consolidated power, restricted freedoms, or transformed society in the 20th century. The skill being tested is application, not recall. Don't just name-drop it; connect it to a claim, like showing how Stalin's terror enabled rapid state-directed change or how it contradicted the revolution's egalitarian promises.

## Great Purge vs Cultural Revolution

Both were internal purges by communist leaders, but they're different events in different countries and units. The Great Purge (1936-1938) was Stalin's campaign in the USSR, run top-down through secret police, show trials, and executions. The Cultural Revolution (1966-1976) was Mao's campaign in China, mobilizing young Red Guards from below to attack party officials, teachers, and 'old' culture. Quick check: USSR + 1930s + show trials means Great Purge; China + 1960s + Red Guards means Cultural Revolution.

## Key Takeaways

- The Great Purge was Stalin's campaign of political repression from roughly 1936 to 1938, using show trials, executions, and gulag sentences to eliminate anyone he viewed as a threat.
- It targeted Old Bolsheviks, Red Army officers, and millions of ordinary Soviet citizens, with hundreds of thousands executed and millions sent to forced-labor camps.
- For AP World, it supports learning objective 7.1.A as an example of internal factors driving political change after 1900, showing how the communist revolution in Russia hardened into authoritarian rule.
- The purge of Red Army officers weakened the Soviet military right before the German invasion of 1941, linking internal repression to World War II outcomes.
- It pairs well with Mao's Cultural Revolution as a comparison of how communist states used internal purges to consolidate one leader's power.

## FAQs

### What was the Great Purge in AP World History?

The Great Purge was Stalin's campaign of political repression in the Soviet Union from about 1936 to 1938, involving show trials, mass executions, and gulag labor camps. In AP World it falls under Topic 7.1 as an example of how states consolidated power and restricted freedoms after 1900.

### Did the Great Purge happen during the Russian Revolution?

No. The Bolshevik Revolution happened in 1917, and the Great Purge came nearly two decades later under Stalin, peaking from 1936 to 1938. In fact, many of the purge's victims were Old Bolsheviks who had led the 1917 revolution itself.

### How is the Great Purge different from the Cultural Revolution?

The Great Purge was Stalin's 1930s campaign in the USSR, carried out top-down by the NKVD secret police through show trials and executions. The Cultural Revolution was Mao's campaign in China from 1966 to 1976, which mobilized young Red Guards to attack party officials and traditional culture. Same goal (protecting one leader's power), different country, decade, and method.

### How many people died in the Great Purge?

Historians estimate hundreds of thousands of people were executed, with the most cited figures around 700,000-750,000, and millions more were sent to gulag labor camps. You don't need exact numbers on the exam, just the scale: this was mass state terror, not isolated arrests.

### Is the Great Purge on the AP World exam?

Yes, it falls under Topic 7.1 (Shifting Power After 1900) in Unit 7. It's most useful as specific evidence in LEQs and DBQs about how communist or authoritarian states consolidated power and restricted personal freedoms in the 20th century.

## Related Study Guides

- [7.1 Shifting Power After 1900](/ap-world/unit-7/shifting-power-after-1900/study-guide/ZUAXtdeXfQeNqXhJxiEg)

## Structured Data

```json
{"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ap-world/key-terms/great-purge#resource","name":"Great Purge — AP World History Definition & Exam Guide","url":"https://fiveable.me/ap-world/key-terms/great-purge","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ap-world/key-terms/great-purge#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-06-11T05:53:16.472Z","isPartOf":{"@type":"Collection","name":"AP World History: Modern Key Terms","url":"https://fiveable.me/ap-world/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ap-world/key-terms/great-purge#term","name":"Great Purge","description":"The Great Purge (1936-1938) was Joseph Stalin's campaign of political repression in the Soviet Union, using show trials, secret police arrests, mass executions, and gulag labor camps to eliminate rivals and terrify the population into obedience, a key example of communist state consolidation in AP World Unit 7.","url":"https://fiveable.me/ap-world/key-terms/great-purge","inDefinedTermSet":{"@type":"DefinedTermSet","name":"AP World History: Modern Key Terms","url":"https://fiveable.me/ap-world/key-terms"}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What was the Great Purge in AP World History?","acceptedAnswer":{"@type":"Answer","text":"The Great Purge was Stalin's campaign of political repression in the Soviet Union from about 1936 to 1938, involving show trials, mass executions, and gulag labor camps. In AP World it falls under Topic 7.1 as an example of how states consolidated power and restricted freedoms after 1900."}},{"@type":"Question","name":"Did the Great Purge happen during the Russian Revolution?","acceptedAnswer":{"@type":"Answer","text":"No. The Bolshevik Revolution happened in 1917, and the Great Purge came nearly two decades later under Stalin, peaking from 1936 to 1938. In fact, many of the purge's victims were Old Bolsheviks who had led the 1917 revolution itself."}},{"@type":"Question","name":"How is the Great Purge different from the Cultural Revolution?","acceptedAnswer":{"@type":"Answer","text":"The Great Purge was Stalin's 1930s campaign in the USSR, carried out top-down by the NKVD secret police through show trials and executions. The Cultural Revolution was Mao's campaign in China from 1966 to 1976, which mobilized young Red Guards to attack party officials and traditional culture. Same goal (protecting one leader's power), different country, decade, and method."}},{"@type":"Question","name":"How many people died in the Great Purge?","acceptedAnswer":{"@type":"Answer","text":"Historians estimate hundreds of thousands of people were executed, with the most cited figures around 700,000-750,000, and millions more were sent to gulag labor camps. You don't need exact numbers on the exam, just the scale: this was mass state terror, not isolated arrests."}},{"@type":"Question","name":"Is the Great Purge on the AP World exam?","acceptedAnswer":{"@type":"Answer","text":"Yes, it falls under Topic 7.1 (Shifting Power After 1900) in Unit 7. It's most useful as specific evidence in LEQs and DBQs about how communist or authoritarian states consolidated power and restricted personal freedoms in the 20th century."}}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"AP World History: Modern","item":"https://fiveable.me/ap-world"},{"@type":"ListItem","position":2,"name":"Key Terms","item":"https://fiveable.me/ap-world/key-terms"},{"@type":"ListItem","position":3,"name":"Unit 7","item":"https://fiveable.me/ap-world/unit-7"},{"@type":"ListItem","position":4,"name":"Great Purge"}]}]}
```