Explore 100 years of communism across the globe, from the 1917 October Revolution to North Korea's modern nuclear defiance.

The Soviet Union explained

From 1922 to 1991, the Soviet Union spanned one-sixth of Earth’s landmass and housed nearly 300 million people. As the most significant test of Marxist governance, it sat at the center of the century’s defining struggle between capitalism and communism.

Communist governments across Eastern Europe fell in 1989

In 1989, a series of mostly peaceful uprisings led to the collapse of communist regimes in Eastern Europe. Protests and political shifts in countries like Poland, East Germany and Czechoslovakia marked the end of Soviet dominance in the region.

Communism grew in appeal during the Great Depression

With at least a quarter of the country out of work, some Americans disenchanted with capitalism began looking at alternatives. Watch this five-minute video to learn about communism's growing allure during the Great Depression.

Explore a timeline tracing the Soviet Union’s collapse from 1985 to 1991

This interactive webpage charts the USSR’s final years—from Gorbachev’s rise to the 1991 dissolution—using infographics, key quotes, and profiles of prominent political figures to explain how the Soviet state unraveled, and Russia emerged in its place.

North Korea country profile

North Korea has often been described as one of the world’s most secretive societies. Learn the basics about the Democratic People’s Republic of North Korea with this breakdown from the BBC. North Korea emerged in 1948, following the end of the Second World War. Today, it remains one of the few countries still (nominally) under communist rule. Key facts unpack the realities of everyday life inside North Korea.

The North Korean nuclear threat, explained

What would happen if North Korea gets a working ICBM Watch this six-minute video by Vox for an explanation of the North Korean nuclear threat. The Soviet Union first gave nuclear technology to North Korea in the 1950s, when they helped their ally...

Soviet control spread across Eastern Europe after WWII

In the late 1940s, the USSR solidified control over Eastern Europe by installing pro-communist regimes in countries like Poland, Hungary and Romania—often through rigged elections and political repression.

Explore the material culture of socialist Cuba

Even the objects of everyday life were politicized under socialism. This catalog of Cuban artifacts, collected between 1959 and the fall of the Soviet Union, reveals how revolutionary values infiltrated the most ordinary of items—from cocktail coasters to cologne.

The Lunar New Year was widely celebrated until Mao Zedong and the Communist Party

In the 1960s, Mao ushered in the Cultural Revolution, an attempt to make China a more modern, industrialized nation. In keeping with this, he banned traditional holiday customs in favor of “revolutionary” actions like chanting Communist Party slogans and engaging in a “self-criticism” ceremony. These changes weren’t very popular and were quickly reversed after Mao’s death.

See a timeline of the major moments in Soviet history

Beginning with Lenin’s return to Russia from Germany in 1917 and ending with Gorbachev’s resignation on December 25, 1991, this timeline outlines the significant domestic and foreign policy developments that led to the rise and fall of the Soviet Union.

Cold War summary on a map

The Cold War spanned much of the world, going far beyond the main territories of the principal players: the US and the Soviet Union. This video map shows where the action took place, from the wars in Southeast Asia to the Suez Canal in Egypt.

The Cuban Revolution explained

Between 1953 and 1959, Fidel Castro and Che Guevara led a small guerrilla movement that toppled Cuba’s Batista dictatorship and created the Western Hemisphere’s first socialist state—reshaping Cuban society and permanently transforming US–Cuba relations.

Sartre eventually denounced communism

The French philosopher was a long-time ardent supporter of communism and the USSR. He finally spoke out against the movement with the 1956 Soviet invasion of Hungary, saying that the move was "made possible by 12 years of terror and imbecility."

During the Cold War, the rules-based order was largely limited to the West

The Soviet Union and its allies operated outside the Bretton Woods institutions, meaning the postwar liberal order functioned as a regional rather than a truly global system. This changed with the USSR's collapse in 1991.

After the USSR's fall, many experts believed liberal democracy had permanently prevailed

Political scientist Francis Fukuyama argued in 1992 that liberal democracy and market capitalism had defeated their ideological opponents and would eventually spread everywhere—a thesis he called "the end of history." Subsequent decades complicated that claim.

The 1917 Russian Revolution: an interactive timeline

The 1917 Russian Revolution ended Tsarist rule and ultimately led to the establishment of the Union of Soviet Socialist Republics in 1922. Follow the events that led to the revolution, subsequent civil war, and the USSR in this interactive...

Economic stagnation and the arms race pushed the USSR toward collapse

By the 1980s, chronic economic stagnation and soaring military costs forced Gorbachev to launch sweeping reforms—perestroika and glasnost—to revive the Soviet system. Instead, openness fueled independence movements across the republics, accelerating the regime’s rapid downfall.

40 maps that explain North Korea

The Democratic People’s Republic of Korea (DPRK) is one of the most misunderstood countries in the world. Use these maps and charts, compiled by Vox, for context and clarity on North Korea. North Korea has a large military and an advanced nuclear...

The Cold War (1947-1991) prompted the birth of NATO and the Soviet Warsaw Pact

The geopolitical rivalry between the United States and Soviet Union was considered “cold" because the two countries never directly engaged in military combat during the time period. This page from the Kennedy Presidential Library outlines the causes and major events of the early Cold War.

Cold War rivalries fueled fierce competition in international sports

From Olympic medal counts to hockey showdowns, the US and USSR used sports to showcase ideological superiority. Athletic victories were framed as proof that each system—capitalist or communist—produced stronger, more disciplined citizens.

Take a multimedia journey through the thirteen days that nearly ended the world

In October 1962, the Cuban Missile Crisis brought the US and Soviet Union to the brink of nuclear war. This interactive archive from the JFK Library reconstructs those tense days through documents, photos, and secretly recorded conversations from the Kennedy White House.

The Soviet Union collapsed in 1991, due to economic decline and political unrest

By the late 1980s, the Soviet economy was stagnating and its political system was under tremendous strain. Soviet reforms failed to reverse the decline, and growing independence movements led to the USSR’s formal dissolution in 1991.

Stalin transformed the USSR through rapid industrialization and brutal repression

Ruling from the mid-1920s to 1953, Joseph Stalin reshaped the Soviet Union with forced collectivization, crash industrial growth, and widespread terror. His policies modernized the economy but caused mass famine, purges, and the deaths of millions.

Explore 1,500 Soviet propaganda posters showcasing the USSR’s visual cultu

This extensive gallery curated by Ben Perry features nearly 1,500 Socialist Realist posters. The images celebrate agriculture, industry, and cultural life, condemn fascism and capitalism, and glorify leaders like Lenin and Stalin through bold colors, striking typography, and classic Soviet design.

The history of the Chinese civil war from 1945-49

Today's tensions were formed after the Chinese Communist Party defeated the Kuomintang shortly after World War II. Here's a thorough explainer on what happened.

Propaganda became a key weapon in the US–Soviet Cold War

Both superpowers waged a global battle for hearts and minds through propaganda—using film, radio, art and education to promote their values. The US emphasized freedom and prosperity, while the USSR championed socialism and anti-imperialism.

Learn how the Soviets won the early space race

This video traces how Cold War arms competition transformed rocketry into a symbol of global power, following pioneers like Tsiolkovsky and von Braun through World War II and into the 1950s, culminating in the Soviet Union’s launch of Sputnik I in 1957.

An interactive visualization tracking 25 years of US-North Korea nuclear negotiations

From 1990 to 2017, the United States and North Korea engaged in a complex series of bilateral and multilateral negotiations. This interactive page, compiled by CSIS Beyond Parallel, displays a record of provocations and negotiations between the two...

Pre-revolution Cuba was prosperous—and deeply unequal

On the eve of Castro’s 1959 revolution, Cuba ranked among Latin America’s most advanced societies, with high incomes and health outcomes. Yet stark racial, rural, and political inequalities—compounded by corruption and US intervention—made the system weak and primed for revolt.

Gorbachev’s reform efforts accelerated the Soviet Union’s collapse

In the 1980s, Mikhail Gorbachev introduced glasnost (openness) and perestroika (restructuring) to reform the USSR. Instead of saving the system, the policies exposed deep problems—fueling unrest and weakening central control.

A digital archive of the Korean War

The Korean War largely shaped the evolution of the Cold War in Asia. Explore the Wilson Center’s digital collection of primary sources—including essays, profiles, popular documents, and a timeline—to learn about the Korean War. In 1945, the...

The Soviet Union’s surprising first atomic test ended the US nuclear monopoly

In 1949, the USSR successfully tested its first atomic bomb—ending the US monopoly on nuclear weapons and sparking an arms race that would define the Cold War.

A backgrounder on North Korea’s power structure

North Korea has been ruled by three generations of the Kim family since 1948, one of the world’s longest-running dynastic dictatorships, where absolute authority flows from the Supreme Leader. Read the Council on Foreign Relations' backgrounder to understand the country’s structure of power.

See the Russian Revolution reimagined as if it unfolded on social media

This creative project retells the lead-up to the 1917 October Revolution as a Facebook-style newsfeed, blending archival photos with excerpts from letters and diaries by figures like Trotsky, Gertrude Stein, and Stravinsky to recreate events in a modern format.

A timeline of Russia-North Korea relations

North Korea and Russia have often had aligned interests, yet their relationship has experienced many highs and lows. Al Jazeera’s explainer outlines the key events defining Russia-North Korea relations. Russia and North Korea were allies during...

'Cold War Conversations' podcast shares voices from the conflict's frontlines

This award-winning podcast features gripping interviews with the people who lived through the Cold War—spies, soldiers, defectors, and civilians. Covering everything from the Berlin Wall to nuclear standoffs, it offers unfiltered, emotional accounts of Cold War life and conflict.

What led to the October Revolution?

The 1917 Russian Revolution is actually two separate revolutions. One happened that spring that ended centuries of Tsarist rule and led to the establishment of a provisional government. Another happened that autumn during which the Bolshevik...

An overview of North Korea’s military capabilities

With one of the world’s largest conventional military forces, North Korea is often perceived as a security threat. This multimedia backgrounder by CFR breaks down North Korea’s military capabilities. North Korea has the world’s...