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| Pisagua Department Departamento de Pisagua | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Department of Chile | |||||||||
| 1884–1974 | |||||||||
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 Map of Tarapacá Province (1895) | |||||||||
| Capital | Pisagua (1884-1970) Huara (1970-1979) | ||||||||
| Demonym | Pisagüino | ||||||||
| Historical era | War of the Pacific aftermath | ||||||||
• Established | 31 October 1884 | ||||||||
• Disestablished | July 1974 | ||||||||
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| Today part of | Chile | ||||||||
Pisagua Department was a department in Tarapacá Province, Chile, from 1883 to 1974. It was ceded to Chile under the Treaty of Ancón, formerly being part of the Peruvian province of the same name.