1866 in the United States
Events from the year 1866 in the United States.
May 16 – U.S. nickel coin approved
1865 in the United States
Events from the year 1865 in the United States. The American Civil War ends with the surrender of the Confederate States, beginning the Reconstruction era of U.S. history.
February 17: Columbia, South Carolina burns
March 4: Andrew Johnson becomes the 16th U.S. vice president
Fires in Richmond, Virginia, burn out of control in the largely abandoned city after Evacuation Sunday (April 2)
April 9: Robert E. Lee surrenders