Wednesday December 11 1861
- Skirmish near Bertrand, MO.
- Tragedy strikes Charleston, SC, as an uncontrollable fire sweeps through the city, destroying half of the city, including the business district.
- Skirmish at Dam No. 4, Chesapeake and Ohio Canal, VA.
Thursday December 11 1862
- John Hunt Morgan, CSA, is appointed Brig. Gen.
- Federal expedition from New Berne to Goldsborough, NC. (Dec 11-20)
- Skirmish on the Kinston Road, NC. (Dec 11-12)
- Skirmish at La Vergne, TN, as Brig. Gen. Nathan Bedford Forrest, CSA, prepares a Cavalry raid on Maj. Gen. Ulysses S. Grant's, USA, line of communication.
- Skirmish near Nashville, TN.
- Federal reconnaissance from Nashville to Franklin, TN, and skirmishes on the Wilson Creek Pike and at Franklin. (Dec 12). (Dec 11-12)
- The Battle of Fredericksburg, VA. (Dec 11-15)
- Maj. Gen. Ambrose E. Burnside's forces, under Maj. Gens. Edwin V. Sumner and William B. Franklin, USA, occupy Fredericksburg, VA, after driving back Brig. Gen. William Barksdale's, CSA, sharpshooters who were contesting the laying of Union pontoon bridges across the Rappahannock River.
- Federal reconnaissance from Yorktown to Gloucester, Matthews, King and Queen, and Middlesex Counties, VA. (Dec 11-15)
- Skirmish at Darkesville, WV.
Friday December 11 1863
- Federal scout from Waldron to Dallas, AR. (Dec 11-13)
- Maj. Gen. John G. Foster, USA, supersedes Maj. Gen. Ambrose E. Burnside, USA, in command of the Dept. of the Ohio, the Knoxville, TN, Campaign.
- Maj. Gen. John A. Logan, USA, supersedes Maj. Gen. Frank P. Blair, Jr, USA, in the command of the 15th US Army Corps, Knoxville, TN.
- Federal scout from Pulaski, TN, to Florence, AL, and skirmish (Dec 12) on Shoal Creek, near Way land Springs, TN, which the Yankees arrive back in camp with 35 prisoners and 2 Rebels accused of the murder of two Yankee soldiers. (Dec 11-17)
- Skirmishes at Big Sewell and Meadow Bluff, WV, with the Federal expedition party.
- Skirmish at Marling's Bottom Bridge, WV, with a Federal expedition party.
Sunday December 11 1864
- The Federal Investment of Savannah, GA, as Maj. Gen. William T. Sherman, USA, begins to rebuild the 1,000 foot bridge over the Ogeechee River to Fort McAllister, which was destroyed by the Confederates. (Dec 11-21)
- Operations about Broadwater Ferry and Chowan River, VA, against the Confederates as Brig. Gen. Israel Vogdes, USA, commanding the US forces at Portsmouth, VA, grabs and detains a squadron of the 20th NY Cavalry heading for the front, to be used for this work instead. (Dec 11-19)
Monday December 11 1865
- Oregon becomes the 27th state to ratify the 13th amendment to the Constitution of the United States, which officially abolishes slavery, one of the main causes of the American Civil War.
On This Day information kindly provided by Martin Cross, 2nd U.S. Artillery, Bty B.