Birthdays
Robert Alexander Lamberton
Turns 42 on this date
Henry Eustace McCulloch
Turns 50 on this date
John Singleton Mosby
Turns 33 on this date
Richard Henry Pratt
Turns 26 on this date
John Mitchell Robinson
Turns 39 on this date
William Joyce Sewell
Turns 31 on this date
William Andrew Snively
Turns 33 on this date
Jane Grey Cannon Swisshelm
Turns 51 on this date
Events
| US/the World | In Brownsville, Texas, General Philip Sheridan removes General John Sedgwick from his command. | 12/06/1866 |
| Legal/Political | The second session of the 39th Congress is sitting in Washington, DC |
12/04/1866 to 12/19/1866 |