1866 in Paraguay

Events in the year 1866 in Paraguay.

Incumbents

President: Francisco Solano Lopez
Vice President: Domingo Francisco Sanchez

Events

January 31 - Battle of Pehuajó
May 2 - Paraguayan War: Battle of Estero Bellaco
May 24 - First Battle of Tuyutí
July 18 - Battle of Boquerón (1866)
September 1–3 - Battle of Curuzu
September 22 - Battle of Curupayty

Deaths

July 18 - Elizardo Aquino, general, killed in action

1866 in South America

Sovereign states	Argentina Bolivia Brazil Chile Colombia Ecuador Guyana Paraguay Peru Suriname Uruguay Venezuela

Dependencies and other territories	Falkland Islands French Guiana South Georgia and the South Sandwich Islands