Tacna Department (Chile)

Tacna Departament
Departamento de Tacna
Department of Chile
Flag of Tacna Departament

Tacna Department within Tacna Province
CapitalTacna
DemonymTacneño
Area
 • Coordinates18°03′20″S 70°14′54″W / 18.05556°S 70.24833°W / -18.05556; -70.24833
Historical eraAftermath of the War of the Pacific
• Established
1884
20 October 1883
28 August 1929
• Disestablished
28 August 1929
Subdivisions
 • TypeCommunes
 • UnitsTacna, Tarata
Preceded by
Succeeded by
Tacna Department
Tarata Province
Tacna Department
Puno Department
Today part ofPeru
Chile

The Tacna Department was a territorial division of Chile that existed between 1884 and 1929. It was ceded by the Treaty of Ancón in 1883 and placed under military administration, and then created on the 31st of October 1884, as one of the three departments of the Tacna Province, incorporating as well a disputed claim over Tarata, and was returned to Peru at midnight on the 28th of August 1929, under the terms agreed upon in the Treaty of Lima of the same year.