American Civil War: The Confederate government was declared dissolved at Washington, Georgia.

The conclusion of the American Civil War commenced with the articles of surrender agreement of the Army of Northern Virginia on April 9, at Appomattox Court House, by General Robert E. Lee and concluded with the surrender of CSS Shenandoah on November 6, 1865, bringing the hostilities of the American Civil War to a close. Legally, the war did not end until a proclamation by President Andrew Johnson on August 20, 1866, when he declared "that the said insurrection is at an end and that peace, order, tranquillity, and civil authority now exist in and throughout the whole of the United States of America." The Confederate government being in the final stages of collapse, the war ended by debellatio, with no definitive capitulation from the rapidly disintegrating Confederacy; rather, Lee's surrender marked the effective end of Confederate military operations. The Confederate cabinet held its final meeting on May 5, at which point it declared the Confederacy dissolved, ending its substantive existence; despite this, some remnant Confederate units did not surrender for another month.