Events in the year 1866 in Chile. Incumbents President: José Joaquín Pérez Events February 7 - Battle of Abtao March 6 - Capture of the Paquete de Maule March 31 - Bombardment of Valparaíso August 22 - Chincha Islands War: Action of 22 August 1866 Chilean presidential election, 1866 Deaths José Raymundo Del Río, Chilean politician (born 1783)
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