Coup Atlas Research Database
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10109121947AttemptedDissident coup

Venezuela, 1947 — dissident coup attempt

Venezuela (VEN)South America, AmericasSeptember 12, 1947

Event Summary

On 12 September 1947 dissident plotters made a further failed attempt against Venezuela's trienio government under junta president Romulo Betancourt, two months after the new constitution was signed into law on 5 July 1947 and three months before the December presidential election. The Accion Democratica program, including the 50 50 oil tax regime, aggressive public education expansion, and labor mobilization, had built a hostile front of business interests, the Catholic Church, conservative parties, and displaced officers, and conspiracies recurred throughout the trienio. The September attempt was put down and the transition stayed on track: on 14 December 1947 Romulo Gallegos won the presidency with roughly three quarters of the vote in what is generally considered Venezuela's first honest election.

The reprieve lasted under a year, as the military overthrew Gallegos on 24 November 1948 and ended the democratic experiment.

Researched Details

Researched

Independent research, added record by record. Hover any label for what it means.

Target identified in Coup Atlas research: Junta president Romulo Betancourt survived the attempt unharmed and the junta completed the transition to the elected Gallegos government
RESEARCHED NAME
Key figures
Romulo Betancourt (junta president, target)
Carlos Delgado Chalbaud (defense minister)
Romulo Gallegos (president elect in December 1947)

Sources

The Constituent Assembly wrote a new constitution signed into law on 5 July 1947, and national elections on 14 December 1947 brought a government headed by AD's Romulo Gallegos to office early in 1948.
SOURCE REVIEWED Encyclopedia of Latin American History and Culture (Encyclopedia.com) open source ↗
AD's vigorous reform program engendered widespread hostility within the business community, the oil companies antagonized by the 50 percent profit tax, and the Roman Catholic Church, which enlisted COPEI in a strident antigovernment campaign.
SOURCE REVIEWED GlobalSecurity, Venezuela History, The Transition to Democratic Rule open source ↗
In the 1947 presidential election the AD candidate Gallegos was credited with about 75 percent of the apparently free popular vote.
SOURCE REVIEWED U.S. State Department, FRUS 1958 to 1960 vol. V supplement open source ↗
On 24 November 1948 Delgado Chalbaud, Perez Jimenez, and Llovera Paez overthrew the elected president Gallegos, who had taken office in February 1948 after what is generally believed to be the country's first honest election.
SOURCE REVIEWED Wikipedia, 1948 Venezuelan coup d'etat open source ↗

Editorial Note

As with the two 1946 Venezuelan attempts, the 12 September 1947 event lacks discrete accessible documentation; the entry fixes the verified constitutional timeline and opposition front around the dataset's date. Completes the trienio triple of attempted coups alongside 1946-09-16 and 1946-12-11, linking to the 1945 and 1948 records.

Cross-Reference

Only one dataset carries it. One of the three reference datasets we check against carries this event; the others do not list it. That is not a contradiction — the datasets cover different periods and use different thresholds — but it means the record has had less outside corroboration.

Identifiers for finding this same event in the other datasets:

Cline Center id
10109121947

How the match is made is described in crossref-report.md.

Outcome and Target

Coup Atlas research identifies the target as: Junta president Romulo Betancourt survived the attempt unharmed and the junta completed the transition to the elected Gallegos government.

Baseline coding: Coup attempt failed to remove the incumbent. Recorded leader fate: remained in office; not physically harmed. The baseline file does not name individual targets; researched names are kept in a separate layer.

Baseline Dataset Citation

Cline Center Coup d’État Project Dataset, v2.2.2
Peyton, Buddy, Joseph Bajjalieh, Michael Martin, and Andrea Gerald. 2026. Cline Center Coup d’État Project Dataset. Cline Center for Advanced Social Research. V.2.2.2. February 17. University of Illinois Urbana-Champaign. doi: 10.13012/B2IDB-9651987_V10
⚑ This citation establishes the coded baseline record; use the claim-level sources above for the researched narrative.

Baseline Source-Document Entries

New York Herald Tribune

Venezuela Says It Has Quelled Revolt in Oil Port of La Cruz, September 13, 1947

New York Times

“Venezuelan Revolt Crushed, Many Held,” September 13, 1947

South China Morning Post

“Venezuelan Revolt,” September 14, 1947

The Washington Post

“Revolt Put Down in Venezuela,” September 13, 1947

This is the citation trail carried by the baseline dataset, grouped by outlet and rejoined from the line-wrapped original. Coup Atlas has not independently re-checked every document; read the original before citing a specific claim. URLs the import damaged beyond safe repair are shown as plain text and listed in citations-report.md. How this list is built →

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