Czechoslovak Socialist Republic
republic in Central/Eastern Europe between 1948 and 1990

The Czechoslovak Socialist Republic (known from 1948 to 1960 as the Czechoslovak Republic), Fourth Czechoslovak Republic, or simply Czechoslovakia, was the Czechoslovak state from 1948 until 1989, when the country was under communist rule, and was regarded as a satellite state in the Soviet sphere of interest.
Following the coup d'état of February 1948, when the Communist Party of Czechoslovakia seized power with the support of the Soviet Union, the country was declared a "people's democratic state" when the Ninth-of-May Constitution became effective. The traditional name Československá republika (Czechoslovak Republic), along with several other state symbols, were changed on 11 July 1960 following the implementation of the 1960 Constitution of Czechoslovakia as a symbol of the "final victory of socialism" in the country.
In April 1990, shortly after the Velvet Revolution, the Czechoslovak Socialist Republic was renamed to the Czech and Slovak Federative Republic. On 10 December 1989, the National Government of Understanding was established with Marián Čalfa as Prime Minister, replacing a Ladislav Adamec led communist government, with a cabinet in which the Communist Party of Czechoslovakia held 10 of 21 seats, compared with the 15 of 20 seats they had held in the previous cabinet. The Communist Party continued to hold a strong plurality in government until democratic elections in June 1990 where the Civic Forum claimed victory, and a new government was formed on 27 June by Prime Minister Čalfa which led the government until its end.
Name
The official name of the country was the Czechoslovak Socialist Republic. The name also means "Land of the Czechs and Slovaks" while Latinised from the country's original name – "the Czechoslovak Nation" – upon independence in 1918, from the Czech endonym Češi – via its Polish orthography.
The name "Czech" derives from the Czech endonym Češi via Polish, from the archaic Czech Čechové, originally the name of the West Slavic tribe whose Přemyslid dynasty subdued its neighbors in Bohemia around AD 900. Its further etymology is disputed.
“Czechoslovak Socialist Republic” enters the record as republic in Central/Eastern Europe between 1948 and 1990. Crown Archives preserves that source wording while asking what Czechoslovak, Socialist and Republic can confirm, complicate or overturn.
Why this record matters
“Czechoslovak Socialist Republic” is worth following because a concise public description often conceals a longer documentary argument. Here, Czechoslovak, Socialist and Republic provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q853348. VIAF identifies the subject as 124946369. The Library of Congress control number is n81032769. Authority coordinates are 50.083, 14.467. 1 of 5 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 1948, 1960, 1989 and 1990.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Czechoslovak Socialist Republic” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.