Civil War Major Battles By olivia0429 Apr 10, 1861 Fort Sumter Jul 21, 1861 Bull Run Apr 6, 1862 Shiloh Apr 26, 1862 New Orleans Sep 17, 1862 Antietam May 1, 1863 Chancellorsville Period: May 18, 1863 to Jul 4, 1863 Vicksburg Campaign Period: Jul 1, 1863 to Jul 3, 1863 Gettysburg Jul 22, 1864 Atlanta Apr 9, 1865 Appomattox