Pro-Union Senator John Crittenden of Kentucky proposes the Crittenden Compromise, which allowed states south of the old Missouri Compromise line to determine for themselves whether they entered the Union slave or free.
In preparation for his assault on the Confederate fortress at Vicksburg, Ulysess S. Grant reorganizes his forces into 4 Corps (13th, 15th, 16th, 17th) under John A. McLernand, William T. Sherman, Stephen A. Hurlbut and James B. McPherson respectively
Commonly known as the Goldsboro Expedition, the Union Army in North Carolina under John G. Foster pushes into the state in an attempt to sever railroad supply lines to Virginia.