Perhaps this is helpful:
The American Civil War was fought between the years of 1861 and 1865. This four year long struggle began with a series of events at Fort Sumter in South Carolina, and ended in April 1865 beginning with Robert E. Lee's surrender of the Army of Northern Virginia at Appomattox. Asking "When was...
civilwartalk.com
1865 - April 2, The Confederate government evacuates its capital, Richmond.
1865 - April 3, Union troops occupy Richmond.
1865 - April 9, Robert E. Lee surrenders the Army of Northern Virginia to Grant at Appomattox.
1865 - April 14, John Wilkes Booth shoots President Lincoln at Ford’s Theater.
1865 - April 15, Lincoln dies, and Andrew Johnson is inaugurated as President.
1865 - April 26, Joseph E. Johnston surrenders to William T. Sherman in North Carolina.
1865 - May 10, Jefferson Davis is captured and taken prisoner near Irwinville, Georgia.
1865 - May 12-13, Final Battle of the Civil War at Palmetto Ranch, Texas
1865 - May 26, In New Orleans, terms of surrender are offered to General E. Kirby Smith, commander of the Trans-Mississippi Department.
1865 - June 2, General E. Kirby Smith accepts New Orleans' terms of surrender, formally ending Confederate resistance.
1865 - June 23, Last significant Confederate active force to surrender was the Confederate allied Cherokee Brig. Gen. Stand Watie and his Indian soldiers.
1865 - June 25, Last shot of the American Civil War fired by the CSS Shenandoah at a Union whaler near the Aleutian Islands.
1865 - November 6, the last Confederate surrender, the Confederate Commerce Raider CSS Shenandoah was turned in.
1866 - August 20, President Andrew Johnson formally declares the end of the war.