On this day in 1863,

LEE ROUTS UNION FORCES AT CHANCELLORSVILLE

Stonewall Jackson Shot By Own Troops, Dies

On this day in 1863, Robert E. Lee cemented his reputation as a tactical genius by outsmarting and routing Union General Joseph Hooker at the Battle of Chancellorsville despite the fact that the Union forces outnumbered the Army of Northern Virginia by a 2:1 ratio.  During the battle, Confederate General Stonewall Jackson, while returning from a reconnaissance mission beyond Union lines, was mistaken for a Union soldier as he returned and shot three times by his own troops.  One of Jackson’s arms was amputated but he died several dies later from pneumonia.

More background here from Civil War Trust