1982 Event Air Florida 737 took off in a snowstorm, crashes into 14th St. Bridge in Washington, D.C., and falls into Potomac River, killing 78 1864 Event General Grant's Army at Potomac attacks at Rappahannock 1863 Event Planning an invasion of Pennsylvania, Lee's army crosses Potomac 1863 Event General Joseph Hooker replaces Burnside as head of Army of Potomac 1862 Event Ambrose Burnside replaces McClellen as head of Army of Potomac 1862 Event Lee crosses Potomac and enters Maryland 1862 Event Naval Engagement at Pascagoula River MS: USS Potomac Expedition 1862 Event General Stonewall Jackson evacuates Winchester Virginia Army of the Potomac, General Henry Halleck is named general-in-chief 1861 Event Harper's Weekly publishes EE Beers' "All quiet along the Potomac"
