Record Data Place Unit Type Nation Containing Unit South America Events Date Type 10/05/1859 A heavy earthquake strikes northern Chile Campaigns/Elections 11/26/1865 After heated anti-Spanish demonstrations in Lima, Peruvian President Canseco is overthrown US/the World 12/30/1865 In Santiago, Chile ratifies its alliance with Peru against Spain, assuring full-scale war over the Chincha Islands US/the World 12/05/1865 Peru and Chile negotiate an alliance against Spain, assuring full-scale war over the Chincha Islands dispute US/the World 02/07/1866 Spanish and South American naval units meet in the Battle of Abtao off the coast of Chile US/the World 04/14/1864 Spanish naval forces seize Peru's guano-rich Chincha Islands to enforce compensation demands US/the World 11/05/1850 The conservative Chilean government declares a state of siege Foreign 11/10/1858 The United States and Chile agree to submit the long standing "Macedonia" dispute for arbitration Lawmaking/Litigating People Places Name Type Santiago, Chile City or Town Valparaiso, Chile City or Town Documents Date Title 09/23/1857 New York Times, “Gen. Walker’s Letter,” September 23, 1857 12/01/1859 New York Times, “Sense from South America,” December 1, 1859 06/02/1866 William Seward to Judson Kilpatrick, Washington, DC, June 2, 1866 Images Argentina, Chile, and Uruguay, 1857, zoomable map