Nathaniel P. Banks, commanding Federals around Baltimore, receives orders to use military force to prevent the state from seceding.
Federals led by Charles P. Stone seize two key ferries on the Potomac River while Confederates begin stirring at Leesburg, Va.
Benjamin Butler oversteps his authority and sends his Federal troops to seize the troublesome city of Baltimore.
Maryland legislators reject secession as President Lincoln controversially suspends the writ of habeas corpus in areas surrounding the state.
The first blood of the war is drawn when Federal troops traveling through Baltimore fire on a jeering mob, sparking mass unrest.
July 13, 1864 – Following his unsuccessful attempt to capture Fort Stevens, Lieutenant General Jubal Early led his Confederate Army of the Valley away from