Coup Atlas Research Database
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43302131962ConspiracyDissident coup

Senegal, 1962 — dissident coup conspiracy

Senegal (SEN)West Africa, AfricaFebruary 13, 1962

Event Summary

This entry is coded 13 February 1962, during the slow deterioration of the power sharing arrangement between President Leopold Sedar Senghor and Prime Minister Mamadou Dia in newly independent Senegal. Under the parliamentary system inherited from the Mali Federation, Dia as president of the council held most economic and internal authority while Senghor handled foreign policy, an arrangement that bred rivalry. Dia pursued a more radical socialist course, sought an exit from the groundnut economy and closer ties with the Soviet bloc, positions that alarmed France and Senegal's conservative marabout establishment.

The rivalry climaxed only in December 1962, when Dia used the gendarmerie to block a censure vote, Senghor accused him of attempting a coup, the assembly voted to remove him, and Dia was arrested and sentenced to life imprisonment. Decades later General Jean Alfred Diallo stated that Dia never actually attempted a coup and the charge was fabricated. The February coding sits in the earlier phase of this widening rift within the ruling UPS.

Researched Details

Researched

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

Target identified in Coup Atlas research: Senghor prevailed in December 1962; Prime Minister Dia was arrested and imprisoned, and Senghor established a presidential regime
RESEARCHED NAME
Key figures
Leopold Sedar Senghor (president)
Mamadou Dia (prime minister and council president, later imprisoned)
General Jean Alfred Diallo (army officer, later said the coup charge was fabricated)

Sources

Mamadou Dia served as first prime minister of Senegal from 1957 until 1962, when he was forced to resign and imprisoned amid allegations he was planning a military coup against Senghor.
SOURCE REVIEWED Wikipedia: Mamadou Dia open source ↗
The December 1962 crisis pitted Dia and four ministers against Senghor and ended the two headed parliamentary system, beginning a presidential regime under which the UPS became the sole party.
SOURCE REVIEWED Wikipedia FR: Crise politique de 1962 au Senegal open source ↗
On 17 December 1992, thirty years later, General Diallo stated that Dia never conducted a coup against Senghor and that the charges were entirely fabricated.
SOURCE REVIEWED Researchgate: The political crisis of 1962 in Senegal open source ↗
Dia advocated a revolutionary break with the colonial society and slave trade economy and closer ties with the Soviet bloc, positions that unsettled France.
SOURCE REVIEWED Senenews: On this day, 17 December 1962 open source ↗

Editorial Note

Date discrepancy noted. CSP codes 13 Feb 1962, but the famous Senghor-Dia crisis climaxed on 17-18 Dec 1962. No discrete plot is dated 13 Feb 1962 in the sources located this session; the coding is best read as the earlier phase of the widening Senghor-Dia rift within the UPS. Context with strong framing.

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
43302131962

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

Outcome and Target

Coup Atlas research identifies the target as: Senghor prevailed in December 1962; Prime Minister Dia was arrested and imprisoned, and Senghor established a presidential regime.

Baseline coding: Plot discovered and disrupted before execution. 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

South China Morning Post

“Plot in Senegal,” February 15, 1962
“Anti-Senegal Plot Denial,” February 18, 1962

Washington Post, Times Herald

“Senegal Alleges Plot,” February 16, 1962

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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