On This Day

20th Congress of the Communist Party of the Soviet Union (CPSU) closes in Moscow, Russia, USSR

The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and the All-Union Communist Party (Bolsheviks), and sometimes referred to as the...

The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and the All-Union Communist Party (Bolsheviks), and sometimes referred to as the Bolshevik Party and Soviet Communist Party, was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism–Leninism.

Events Before

  1. "The Bob Cummings Show" premieres on NBC (later moves to CBS)

    "The Bob Cummings Show" premieres on NBC (later moves to CBS)

  2. Bhutan issues its first postage stamps

    The first postage stamps of Bhutan were issued in 1962, the same year that the first motorable road was opened.

  3. Marian Anderson is the first African American to perform with the New York Metropolitan Opera, singing the role of Ulric

    Marian Anderson is the first African American to perform with the New York Metropolitan Opera, singing the role of Ulrica in Giuseppe Verdi's "Un ballo in maschera"

  4. American film director Stanley Kubrick (26) weds second wife, Austrian theatrical designer Ruth Sobotka (29); divorce in

    American film director Stanley Kubrick (26) weds second wife, Austrian theatrical designer Ruth Sobotka (29); divorce in 1957

  5. "The Millionaire" TV series premieres on CBS

    "The Millionaire" TV series premieres on CBS

Events After

  1. Sputnik 1 Launch

    The Soviet Union launches Sputnik 1, the world's first artificial satellite, igniting the Space Age and the US-Soviet Space Race.

  2. An Irish Republican Army (IRA) unit attacks Brookeborough Royal Ulster Constabulary barracks in one of the most famous i

    An Irish Republican Army (IRA) unit attacks Brookeborough Royal Ulster Constabulary barracks in one of the most famous incidents of the IRA's Operation Harvest

  3. Aviator Howard Hughes marries 2nd wife actress Jean Peters

    Aviator Howard Hughes marries 2nd wife actress Jean Peters

  4. South African golfer Gary Player (21) weds childhood sweetheart Vivienne Verwey, until her death in 2021

    South African golfer Gary Player (21) weds childhood sweetheart Vivienne Verwey, until her death in 2021

  5. English-American actress Elizabeth Taylor's 2nd divorce from English actor Michael Wilding, after almost 5 years of marr

    English-American actress Elizabeth Taylor's 2nd divorce from English actor Michael Wilding, after almost 5 years of marriage

More from the 1950s

Frequently Asked Questions

What happened on February 23, 1956?
The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and the All-Union Communist Party (Bolsheviks), and sometimes referred to as the Bolshevik Party and Soviet Communist Party, was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism–Leninism.
Why is 20th Congress of the Communist Party of the Soviet Union (CPSU) closes in Mos... historically important?
The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism–Leninism.

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