| Nomination for Nobel Peace Prize | 
| Year: | 1931 | 
| Number: | 12 - 1 | 
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| Nominee: 
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| Name: | Mariano Hilario  Cornejo | 
| Gender: | M | 
| Year, Birth: | 1867 | 
| Year, Death: | 1942 | 
| Profession: | Diplomat and jurist. Professor of Law and Sociology. | 
| City: | Lima | 
| Country: | PERU (PE) | 
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| Motivation: | Cornejo worked for a peaceful solution to the conflicts between Bolivia and Paraguay, and between Peru and Colombia. He contributed greatly to international peace work, but mostly he advocated peace in Latin America. | 
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| Nominator: 
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| Name: | Henrik  Ameln | 
| Gender: | M | 
| Profession: | Member of the Norwegian parliament | 
| City: | Oslo | 
| Country: | NORWAY (NO) | 
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