Union Major General David Hunter issued General Order No. 11 on May 9th, 1862:
'Slavery and martial law in a free country are altogether incompatible; the persons in these three States - Georgia, Florida, and South Carolina - heretofore held as slaves, are therefore declared forever free.'
President Abraham Lincoln quickly rescinded the order, fearing the political effects it would have in the Border States.
On May 15th, 1864, Union General William T. Sherman begins his Atlanta Campaign with The Battle of Resaca, Georgia. The battle ended inconclusively.
Ellwood Manor, in Locust Grove, Virginia, was used as a Confederate hospital during the Chancellorsville Campaign. It was also a headquarters and hospital of the Union Army during the Wilderness Campaign. General "Stonewall" Jackson's arm is buried in the family cemetery.
Confederate forces under Joseph E. Johnston and G.W. Smith engage Union forces under George B. McClellan at the Battle of Seven Pines, outside of Richmond, Virginia, on May 31, 1862.