Historical biography archive · Updated 2026-11-03

Denis Sassou Nguesso Biography and Timeline

Follow Denis Sassou Nguesso through 3 dated historical records for Republic of the Congo.

Denis Sassou Nguesso, historical timeline

A chronological timeline drawn from matching World History Database records.

3Distinct records
1 of 1Page
1979–1997Years on this page

1979

Takes Presidency of People's Republic

President of Congo · Brazzaville · Government / Government of the Congo

Replaces Yhombi-Opango and becomes president while maintaining one-party Marxist rule.

1991

National Conference Ends One-Party Rule

President of Congo · Brazzaville · Government / Government of the Congo

Accepts the sovereign national conference that dismantles the one-party political system.

1997

Return to Power after Civil War

President of Congo · Brazzaville · Warfare / Civil War

Returns to power after his forces, backed by Angolan troops, defeat Pascal Lissouba's government.

Role range: 1997-1997

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.