Historical
1863-1865: Poland, Russia - Polish uprising against the Russian Empire
1863: Iraq - Baha u llah declares His station as "He whom God shall make manifest", this date is celebrated in the Baha I Faith as The Festival of Ridvan
1863: Switzerland - Formation of the International Red Cross is followed by the adoption of the First Geneva Convention in 1864
1864-1866: Peru, Chile, Spain - The Chincha Islands War was an attempt by Spain to regain Its South American colonies in Peru and Cile
1864-1870: Paraguay - The War of the Triple Alliance ends Paraguayan ambitions for expansion and destroys much of the Paraguayan population
1865-1877: United States - Reconstruction in the United States, slavery is banned in the United States by the Thirteenth Amendment to the United States Constitution
1865: United States - April 14, 1865, United States President Abraham Lincoln is assassinated while attending a performance at Fords Theater, Washington, D.C., he dies approximately nine hours after being shot on April 15, 1865
1865: United States - April 9, 1865 Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Courthouse, Virginia, effectively ending the American Civil War
1866-1868: Finland - Famine in Finland
1866-1869: Japan - After the Meiji Restoration, Japan embarks on a program of rapid modernization
1866: England, United States - Successful transatlantic telegraph cable follows an earlier attempt in 1858 by Cyrus West Field, the first cable used for telegraph communications laid across the floor of the Atlantic Ocean crosees from the Telegraph Field, Foilhommerum Bay, Valentia Island, in western Ireland to Hearts Content in eastern Newfoundland, messages that took at least ten days to deliver by ship now took only minutes
1866: Germany, Austria - Austro-Prussian War results in the dissolution of the German Confederation and the creation of the North German Confederation and the Austrian-Hungarian Dual Monarchy