| 1860 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 6 November 1860 | Lincoln elected President with 40% of the popular vote | ||
| 20 December 1860 | South Carolina secedes | ||
| 1861 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 9 January 1861 | Mississippi secedes | ||
| 10 January 1861 | Florida secedes | ||
| 11 January 1861 | Alabama secedes | ||
| 19 January 1861 | Georgia secedes | ||
| 26 January 1861 | Louisiana secedes | ||
| 1 February 1861 | Texas secedes | ||
| 4 February 1861 | Confederate States of America formed at Montgomery, AL | ||
| 12-13 April 1861 | Bombardment of Ft. Sumter | ||
| 15 April 1861 | Lincoln calls for 75,000 volunteers to invade South | ||
| 24 May 1861 | Union invades Virginia | ||
| 21 July 1861 | Battle of Manassas (Bull Run) | ||
| 25 July 1861 | U.S. Congress passes resolution declaring that the war is being fought to preserve the Union, not to end slavery. | ||
| 10 Aug 1861 | Battle of Wilson's Creek, MO | ||
| 11-12 Oct 1861 | Ironclad ram Manassas clears US blockaders from mouth of Mississippi | ||
| 1862 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 6 Feb 1862 | Fall of Ft. Henry, TN | ||
| 16 Feb 1862 | Fall of Ft. Donelson, TN | ||
| 23 Feb 1862 | Occupation of Nashville | ||
| 6, 7, 8 March 1862 | Battle of Elkhorn Tavern (Pea Ridge), AR | ||
| 9 March 1862 | Battle between CSS Virginia and USS Monitor, Hampton Roads, VA | ||
| 23 March 1862 | Battle of Kernstown begins Jackson's Valley campaign | ||
| 6 April 1862 | Battle of Shiloh - A.S. Johnston killed | ||
| 7 April 1862 | Battle of Shiloh - Beauregard in command | ||
| 24 April 1862 | Farragut captures New Orleans | ||
| 8 May 1862 | Battle of McDowell, VA - Jackson whips Fremont | ||
| 23 May 1862 | Battle of Front Royal, VA - Jackson whips Kenley | ||
| 25 May 1862 | Battle of Winchestere, VA - Jackson whips Banks | ||
| 31 May 1862 | Battle of Seven Pines - J.E. Johnston wounded | ||
| 1 June 1862 | Battle of Seven Pines - Lee in command | ||
| 6 June 1862 | Battle of Cross Keys, VA - Jackson whips Fremont | ||
| 7 June 1862 | Battle of Cross Keys, VA - Jackson whips McDowell | ||
| 26 June 1862 | The Seven Days' Battles - Mechanicsville | ||
| 27 June 1862 | The Seven Days' Battles - Cold Harbor | ||
| 28 June 1862 | The Seven Days' Battles - Golding's Farm | ||
| 29 June 1862 | The Seven Days' Battles - Savage Station | ||
| 30 June 1862 | The Seven Days' Battles - Frayser's Farm | ||
| 1 July 1862 | The Seven Days' Battles - Malvern Hill | ||
| 30 Aug 1862 | Second Battle of Manassas, VA | ||
| 16 Sept 1862 | Battle of Sharpsburg, Maryland (Antietam) | ||
| 17 Sept 1862 | |||
| 1863 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 1 July 1863 | Battle of Gettysburg | ||
| 2 July 1863 | Battle of Gettysburg | ||
| 3 July 1863 | Battle of Gettysburg | ||
| 4 July 1863 | Vicksburg surrendered to Grant | ||
| 1864 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 8 April 1864 | Banks Red River campaign defeated at Mansfield and Pleasant Hill, LA | ||
| 9 April 1864 | |||
| 18 July 1864 | Davis replaces Johnston with Hood | ||
| 2 Sept 1864 | Atlanta surrendered to Sherman | ||
| 1865 | WESTERN THEATER | CENTRAL THEATER | EASTERN THEATER |
| 2 April 1865 | Petersburg & Richmond abandoned | ||
| 9 April 1865 | Lee surrenders Army of Northern Virginia to Grant | ||
| 26 April 1865 | Johnston surrenders Army of Tennessee to Sherman | ||
| 10 May 1865 | President Davis captured at Irvinsville, Georgia | ||
| 13 May 1865 | Battle of Palmetto Ranch | ||
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