Union Navy ships made an unsuccessful attack on Ft. McAllister, guarding the southern entrance to the port city of Savannah.
On the 2nd, Union ram Queen of the West steamed past the Confederate batteries at Vicksburg. She was hit twelve times, but was mostly undamaged. She then rammed the Confederate ship City of Vicksburg and retired. The next day, she attacked three southern ships and captured them, destroying their vital cargoes.
Also on the 2nd, Confederate General Nathan Bedford Forrest attacked the Union garrison at Fort Donelson, Tennessee in an attempt to relieve the pressure on Vicksburg. The attack failed.
On February 3, the French made an offer to mediate between the North and South through Federal Secretary of State William Seward, who declined the offer.
Union General Joseph Hooker reorganized the Army of the Potomac, giving corps commands to John Reynolds, Darius Couch, Dan Sickles, George Meade, John Sedgwick, William F. Smith, Franz Siegel and Henry Slocum. George Stoneman is appointed cavalry chief.
On February 12th, the West Virginia Constitutional Convention reconvened in response to the U.S. Congress’ request to modify certain wording concerning slaves.
Queen of the West struck again on the 12th, taking more than $2 million in cargo in a single day. But on the 14th, the ship ran aground and was abandoned.
The U.S. Senate passed the Conscription Act on the 16th. The next day, West Virginia approved a revised state constitution.
General Grant, who had previously issued an order to halt publication of the Chicago Times as a subversive newspaper, rescinded the order on February 17th.
A Democrat Convention in Richmond, KY was broken up by Federal authorities because some members were pro-South.
Confederate General Daniel H. Hill assumed command of all North Carolina forces on the 25th
February 26th saw President Lincoln signing the National Currency Act into law. The legislation created a national banking system, a currency bureau, and the office of Comptroller of the Currency.
Also on the 26th, the Cherokee Nation rescinded its previous declaration of secession and also abolished slavery.
On the last day of February, Federal gunships moved up the Ogeechee River in Georgia to destroy a Confederate privateer known as the Rattlesnake.