Civil War Timeline By jsmith6 Apr 12, 1861 Attack on Fort Sumter Apr 6, 1862 Battle of Shiloh Jun 1, 1862 Robert E. Lee takes command over Confederate army Sep 17, 1862 Battle of Antietam May 1, 1863 Battle of Chancellorsville Jul 1, 1863 Battle of Gettysburg May 5, 1864 Battle of the Wilderness