Important Dates in the Civil War By jblomq1 Period: Jan 1, 1860 to Dec 31, 1865 Important Dates in the American Civil War Apr 12, 1861 Fort Sumter is attacked by Confederate forces and surrenders. Fort Sumter is attacked by Conferderate forces and surrenders. Jan 1, 1863 The Emancipation Proclomation is signed by President Lincoln. Jul 4, 1863 Union forces win the Battle of Gettysburg. Nov 15, 1864 General Sherman marches to the sea. Apr 9, 1865 General Lee surrenders at Appomattox Courthouse.