Union and Confederate armies collide near Chancellorsville in Spotsylvania County, Virginia
The Army of the Potomac under General Joseph Hooker moved forward against Lee's Army of Northern Virginia in the morning. Confederate forces were also moving towards Chancellorsville on the attack and the two armies collided in the hour before noon. The Union divisions had the better of the afternoon engagement but Hooker called a halt to the advance to dig in for the night with the aim of encouraging a Confederate attack that could be repulsed from entrenched positions in the woods of "the Wilderness." (By John Osborne)
Stephen W. Sears, Chancellorsville (New York: Houghton Mifflin Company, 1996), 212-239.