FILE - In this June 20, 2014, file photo, Civil War re-enactors Lt. James Hayes, from left, Samuel Stephenson and Marvin-Alonzo Greer participate in a Juneteenth celebration at the Atlanta Cyclorama and Civil War Museum in Atlanta. Juneteenth celebration started with the freed slaves of Galveston, Texas. Although the Emancipation Proclamation freed the slaves in the South in 1863, it could not be enforced in many places until after the end of the Civil War in 1865. (Kent D. Johnson/Atlanta Journal-Constitution via AP, File)