Rulers & Emperors · Head-to-head
Mengistu Haile Mariam vs Oscar Arias
No — based on their recorded years, Mengistu Haile Mariam (1937–) lived before Oscar Arias (1940–), and their lifetimes did not overlap.
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Mengistu Haile Mariam
A military officer and Marxist-Leninist revolutionary who led Ethiopia's ruling Derg junta and was later convicted in absentia of genocide for the Red Terror campaign.
Key achievements
- Rose to power as chairman of the Derg, the Marxist-Leninist military junta that overthrew Emperor Haile Selassie in 1974
- Served as head of state of Ethiopia from 1977 to 1991
- Presided over the Red Terror, a violent political purge that killed tens of thousands of Ethiopians
- Was convicted in absentia of genocide by an Ethiopian court in 2006 after fleeing into exile in Zimbabwe
Fast fact
Mengistu was convicted in absentia by an Ethiopian court in 2006 of genocide for the Red Terror, a brutal campaign of political repression that killed tens of thousands of Ethiopians during his rule.
Full profile of Mengistu Haile Mariam →Oscar Arias
A two-term Costa Rican president and Nobel Peace Prize laureate recognized for his efforts to broker peace across Central America in the 1980s.
Key achievements
- Served as president of Costa Rica from 1986 to 1990 and again from 2006 to 2010
- Received the Nobel Peace Prize in 1987 for his Central American peace plan
- Helped negotiate resolutions to conflicts in Nicaragua and other Central American nations
- Promoted Costa Rica's long-standing tradition of demilitarization and environmental policy
Fast fact
Arias received the Nobel Peace Prize in 1987 for his role in developing a regional peace plan that helped end civil conflicts across Central America.
Full profile of Oscar Arias →Who lived first, Mengistu Haile Mariam or Oscar Arias?
Mengistu Haile Mariam (1937–) lived first, before Oscar Arias (1940–), based on their recorded years.
Were Mengistu Haile Mariam and Oscar Arias contemporaries?
No — based on their recorded years, Mengistu Haile Mariam (1937–) lived before Oscar Arias (1940–), and their lifetimes did not overlap.
What do Mengistu Haile Mariam and Oscar Arias have in common?
Both Mengistu Haile Mariam and Oscar Arias are grouped among our Rulers & Emperors figures and lived during the Modern Era.