Henry W. Halleck issues General Orders as part of his Federal program to suppress alleged disloyalty in Missouri.

Exploring the most important 55 months in American history
Henry W. Halleck issues General Orders as part of his Federal program to suppress alleged disloyalty in Missouri.
President Abraham Lincoln submits his first annual message to Congress, in which he describes the current state of affairs and reiterates his view that the Union must be preserved by all necessary means.
The second session of the first Republican-dominated Congress opened with many intent on destroying slavery as a means to win the war.
Abraham Lincoln reluctantly signs a bill into law allowing Federal commanders to seize slaves from people supporting the Confederacy.