The History of the Soviet Union, 1917–1991

The history of the Soviet Union spans seventy-four years, from the Bolshevik seizure of power in the autumn of 1917 to the dissolution of the union in December 1991. In that interval the country was transformed from a war-shattered empire into one of the world's two superpowers, won and lost wars, undertook one of the most ambitious experiments in social engineering ever attempted, suffered famines, terror, and invasion, sent the first man into space, and collapsed under the weight of its own contradictions. Seventeen Moments in Soviet History approaches that vast subject by examining seventeen years in detail. The overview below traces the broader arc that connects them; each section links to the corresponding year module and to specific topical essays where readers can explore the period in depth.

Revolution and Civil War, 1917–1921

The history of the Soviet Union begins in the catastrophe of the First World War. By early 1917 the Russian Empire -- exhausted by three years of fighting, mismanaged at the front, and starving in the cities -- fractured along its political seams. In late February the February Revolution toppled the tsarist autocracy in a matter of days; the Provisional Government that replaced it inherited a country in collapse and a war it could not end. For eight months a fragile dual power coexisted between the Provisional Government and the soviets -- councils of workers and soldiers -- until the Bolsheviks seized power in late October under the leadership of Vladimir Lenin.

The new government acted with extraordinary speed. Lenin's first decrees nationalized land, distributed it to peasants who had already begun seizing it themselves, and called for an immediate end to the war. The Treaty of Brest-Litovsk in March 1918 bought peace with the Central Powers at the cost of vast territorial losses. Almost immediately a civil war erupted between the Red Army and a fragmented set of "White" forces supported by Allied intervention. Over the next three years the Bolsheviks consolidated power through a combination of military victory, ruthless state security, and the policy known as "war communism," which requisitioned grain from the countryside to feed the cities and the army.

By 1921 the Bolsheviks had won the war but inherited a ruined country. Industrial output had collapsed to a fraction of pre-war levels, the cities had emptied as workers fled to the countryside in search of food, and the survivors faced a catastrophic famine that killed perhaps five million people. The Kronstadt uprising of sailors and the peasant rebellion in Tambov demonstrated that even the Bolsheviks' core constituencies had reached the limits of endurance.

The New Economic Policy and Lenin's Death, 1921–1924

At the Tenth Party Congress in March 1921, Lenin announced a sharp retreat from war communism. The New Economic Policy -- the NEP -- restored a measure of private trade, allowed peasants to sell their surplus on open markets, and tolerated small-scale private enterprise in the cities. The "commanding heights" of large industry, banking, and foreign trade remained in state hands, but a hybrid economy of private and public sectors took shape. The NEP brought rapid recovery: by the late 1920s output had returned to pre-war levels, urban life revived, and a small commercial class -- the Nepmen -- emerged in the cities.

The same Tenth Congress also banned organized factions within the Communist Party itself, a decision that would shape Soviet politics for the next seventy years. When Lenin suffered a series of strokes beginning in 1922 and died in January 1924, the prohibition on factions did not prevent a bitter succession struggle within the Politburo. Through skillful manipulation of party machinery -- including the Lenin Enrollment that flooded the party with politically inexperienced new members loyal to the apparatus -- Joseph Stalin emerged by 1928 as the dominant figure. The country he now controlled had recovered economically but had not yet decided what kind of socialism it wished to build, or at what pace.

Stalin's Revolution from Above, 1929–1939

In 1929 -- the Year of Great Change, as Stalin called it -- the Soviet Union launched what amounted to a second revolution. The first Five-Year Plan abandoned NEP gradualism in favor of forced-pace industrialization, while collectivization ended private peasant agriculture and consolidated rural production into state-controlled collective farms. The campaign against the kulaks -- the supposedly wealthy peasants -- destroyed millions of households through deportation, imprisonment, and execution, and triggered a famine in 1932–33 that killed several million people, most of them in Ukraine and Kazakhstan.

The industrial half of the transformation was equally radical. Whole new industrial cities rose at sites like Magnitogorsk, where peasants and prisoners built one of the largest steel complexes in the world from open steppe in a few years. Soviet propaganda celebrated the shock workers and, after 1935, the Stakhanovites -- model laborers whose feats of productivity were held up as evidence of socialist superiority. The cost was paid in the labor camps of the Gulag, in the suppression of strikes and protests, and in a society reshaped by terror and mobility.

By the mid-1930s the regime declared the construction of socialism essentially complete. The Stalin Constitution of 1936 proclaimed a country of workers and peasants in which exploiting classes had been abolished. Socialist realism became the official aesthetic; cinema, painting, and literature were directed toward representing Soviet life as it ought to be. The popular film industry produced musicals and adventure pictures that filled cinemas and shaped a new Soviet mass culture.

Beneath the official triumphalism, however, the leadership turned on itself. The murder of Sergei Kirov in December 1934 became the pretext for a campaign of repression that escalated into the Great Terror of 1936–1938. Old Bolsheviks who had made the revolution were tried in show trials, confessed to fantastical conspiracies, and were shot. The military command was decimated. Hundreds of thousands of ordinary citizens were arrested on charges of being "enemies of the people." At least 680,000 people were executed in 1937 and 1938 alone, and millions more were sent to camps. The terror reshaped Soviet society from top to bottom and made personal loyalty to Stalin -- increasingly framed as a cult of personality -- the central organizing principle of political life.

By the late 1930s the regime began preparing for the war it believed was coming. Labor discipline was tightened to near-military standards. The August 1939 Molotov-Ribbentrop Pact with Nazi Germany included secret protocols dividing Eastern Europe into spheres of influence; over the following two years the Soviet Union absorbed eastern Poland, the Baltic states, Bessarabia, and parts of Finland.

The Great Patriotic War, 1941–1945

The German invasion that began on June 22, 1941 -- code-named Operation Barbarossa -- was the largest land invasion in human history and the central event in the Soviet experience of the twentieth century. The pre-war pact with Berlin had bought the Soviet Union almost two years to prepare, but the initial blow nearly destroyed the Red Army. Within months the Wehrmacht had overrun Belarus, Ukraine, and the Baltic states, encircled Leningrad in a siege that would last almost nine hundred days and kill more than a million civilians, and reached the outskirts of Moscow.

The Soviet recovery was equally extraordinary. Entire industries were evacuated -- locomotives and machine tools shipped east to the Urals and Siberia, where they were reassembled and turned to war production within weeks. The decisive turning points came in the winter of 1942–43 at Stalingrad, where Marshal Vasilevskii's encirclement destroyed the German Sixth Army, and at Kursk in July 1943, where the largest armored battle in history broke the Wehrmacht's offensive capacity in the East. From then until the storming of Berlin in May 1945, the Red Army advanced westward, liberating much of Eastern Europe in the process.

The cost was staggering. At least twenty-seven million Soviet citizens died -- soldiers, civilians under occupation, prisoners of war, residents of villages destroyed by both armies, and deported minorities -- Chechens, Crimean Tatars, Volga Germans, and others -- whom Stalin punished collectively for supposed collaboration with the enemy. Whole generations were lost. The war remade Soviet society: the regime relaxed its hostility to the Orthodox Church, reintroduced traditional military ranks, and embraced a Russian patriotism that had been suspect in the 1920s. The shared trauma and the shared victory became central to Soviet identity for the rest of the Soviet period, and the Great Patriotic War remains the single most consequential event in the history of the Soviet Union.

High Stalinism and the Early Cold War, 1945–1953

Victory did not bring relief. The country emerged from the war devastated, with twenty-five million people homeless and large swaths of European Russia in ruins. Recovery was driven by another wave of forced mobilization, and political life tightened sharply. The Cold War that began in 1947 with the Truman Doctrine and the Marshall Plan was matched by the Cominform and the consolidation of communist regimes across Eastern Europe. At home, the campaign against "rootless cosmopolitans" associated with Andrei Zhdanov targeted Jewish intellectuals and writers; the xenophobic mobilization against Western influence reached into every cultural sphere. A new famine in 1946–47 killed perhaps a million people, and millions of returning veterans found themselves living in poverty in a country that celebrated their victory in the abstract while distrusting them in practice.

By the late 1940s the regime was preparing what looked like another wave of terror. The "Doctors' Plot" of January 1953 -- an alleged conspiracy of Jewish physicians to assassinate Soviet leaders -- appeared to be the opening salvo of a new purge. It was cut short by Stalin's death on March 5, 1953, an event that left his lieutenants -- Lavrentii Beria, Georgii Malenkov, Nikita Khrushchev, and others -- to fight out the succession among themselves. Within months Beria had been arrested and shot; within a few years Khrushchev had emerged as first secretary of the Communist Party.

The Khrushchev Era: Thaw and Reform, 1953–1964

The Khrushchev years are among the most consequential in the history of the Soviet Union. In February 1956, at the close of the Twentieth Party Congress, Khrushchev delivered the "secret speech" -- On the Cult of Personality and Its Consequences -- denouncing Stalin's crimes against the party. The speech traveled rapidly both within the Soviet Union and beyond, and shattered the moral authority of Stalinism. Hundreds of thousands of prisoners returned from the Gulag. Cultural life entered a period known as the Thaw, in which writers, filmmakers, and poets explored themes that had been forbidden under Stalin.

De-Stalinization had consequences beyond Soviet borders. In October 1956 Hungary rose in revolt against its communist government; Soviet troops crushed the uprising at a cost of thousands of lives and the credibility of the bloc's reformist promise. Within Soviet society itself, the limits of the Thaw were demonstrated by Khrushchev's confrontation with modernist artists in 1962 and by the Novocherkassk massacre, where troops fired on striking workers protesting food prices.

Khrushchev's reformism extended into every sphere. The Virgin Lands campaign plowed up tens of millions of hectares of grassland in Kazakhstan and Siberia in an attempt to break the Soviet Union's chronic grain deficit. The corn campaign imitated American farming methods on Russian soil with mixed results. Massive housing construction -- the so-called Khrushchevki -- moved tens of millions of families out of communal apartments into separate flats. The launch of Sputnik in October 1957 and Iurii Gagarin's orbital flight in April 1961 made Soviet science a global symbol of socialist achievement.

But Khrushchev's improvisations also produced repeated crises -- the Berlin Wall, the Cuban Missile Crisis, the agricultural failures of 1963 -- and accumulated enemies inside the leadership. In October 1964 the Central Committee voted to remove him, citing "harebrained scheming" and "subjectivism." Power passed to Leonid Brezhnev.

The Brezhnev Era: Stability and Stagnation, 1964–1982

The Brezhnev years are sometimes called the period of "developed socialism" by the regime that produced them and the era of "stagnation" by the one that followed. Both labels capture something. Living standards rose steadily; consumer goods became more available; pensions and housing improved; the Soviet middle class -- engineers, technicians, professionals -- settled into the dachas and private cars that had become attainable to ordinary families. The response to the 1968 Prague Spring -- Warsaw Pact tanks rolling into Czechoslovakia to suppress Alexander Dubček's reforms -- defined the limits of permissible change within the bloc. The Brezhnev Doctrine made the point explicit: socialist gains, once achieved, could not be reversed.

Détente with the West in the early 1970s produced arms-control agreements and the Helsinki Accords, which committed both blocs to respect human rights. The Helsinki commitment proved more durable than expected: it gave the Soviet dissident movement -- Andrei Sakharov, Aleksandr Solzhenitsyn, the Helsinki Watch groups -- international standing and a vocabulary in which to press their claims. The exile of Sakharov to the city of Gorky in 1980 dramatized the regime's intolerance and the dissidents' moral authority in equal measure.

Beneath the surface stability, however, the economic model was running out of room. Soviet growth depended on the steady addition of new workers and new resources, both of which were exhausting. Productivity stagnated. Soviet consumerism raised expectations the planned economy could not meet, and a vast underground economy grew up alongside the official one. The invasion of Afghanistan in December 1979 mired the army in a war it could not win, and the rise of Solidarity in Poland in 1980 demonstrated that the bloc's social peace had been an illusion. Brezhnev died in November 1982. His successors, Iurii Andropov and Konstantin Chernenko, were both elderly and ill; both died within thirty months of taking office.

Perestroika and the Collapse of the Soviet Union, 1985–1991

In March 1985 the Politburo chose the youngest of its members, Mikhail Gorbachev, as general secretary. Gorbachev came to office convinced that the Soviet Union could be reformed without abandoning socialism. The program he developed -- perestroika (restructuring) and glasnost (openness) -- sought to decentralize economic decision-making, permit limited private enterprise through cooperatives, and open up public discussion of historical and current problems. The anti-alcohol campaign of 1985 was an early signal of the new leader's seriousness about social problems; its costs to state revenue and its unpopularity were also an early signal of how poorly Soviet officials would judge the consequences of their reforms.

The most consequential single event of the perestroika years was the Chernobyl nuclear accident in April 1986. The disaster killed a relatively small number of people directly, but its political effects were enormous: the regime's initial concealment, its eventual public reckoning, and the visible inadequacy of the response convinced Gorbachev and many others that the existing system could not be patched. Glasnost accelerated. Newspapers began publishing previously forbidden material; archives opened; the crimes of the Stalin era were debated openly. In 1989 the first competitive elections to the Congress of People's Deputies produced a chamber in which reformers and dissidents -- Sakharov, Boris Eltsin, and others -- could speak directly to a national audience.

Once the Soviet Union ceased to enforce ideological discipline at home and in its satellites, the eastern bloc unraveled with astonishing speed. In the autumn of 1989 communist governments fell across Eastern Europe; the Berlin Wall came down in November; the Warsaw Pact dissolved the following year. Within the Soviet Union itself, the national question became the central political fact. The Baltic republics, Georgia, Armenia, and Azerbaijan moved toward independence. Eltsin won the Russian presidency in June 1991, and Ukraine voted for independence in a referendum the following December.

Gorbachev's attempt to negotiate a new union treaty -- the Nine-Plus-One Agreement -- was overtaken in August 1991 by an attempted coup by hardliners who hoped to restore central authority. The coup collapsed within three days, but it destroyed what remained of Gorbachev's authority. In December 1991 the leaders of Russia, Ukraine, and Belarus met at Belovezhskaia Pushcha and dissolved the Soviet Union by treaty. On December 25 Gorbachev resigned. The Soviet flag was lowered over the Kremlin for the last time, and the history of the Soviet Union came to an end.

The Archive

The history of the Soviet Union is too vast and too contested for any single overview to capture. The seventeen years featured on this site are not the only ones that mattered, but each opens a window onto a distinct moment -- a year in which the trajectory of the country bent or accelerated or broke. Readers can move from this overview into any of the seventeen year modules or browse by theme, following questions about the Communist Party, the countryside, the nationalities, the economy, international relations, the military, or any of the other threads that ran through Soviet life. The archive collects more than two thousand primary sources -- texts, images, films, songs, and translated documents -- to allow readers to encounter the history of the Soviet Union in the words and images of those who lived it.