The Confederate garrisons of Fort Wagner and Battery Gregg abandon their defense and slip away in the night
After months of sturdy resistance, the position of Fort Wagner and Battery Gregg on Morris Island in defense of Charleston Harbor had finally become untenable in the face of Union siege operations. General Beauregard ordered a withdrawal and this was carried out with great skill and stealth during the hours of darkness before midnight. Only seventy-five of the garrison were captured. (By John Osborne)
John Johnson, The Defense of Charleston Harbor: Including Fort Sumter and the Adjacent Islands, 1863-1865 (Charleston, S.C., Walker, Evans, and Cogswell Co., 1890), cxvi.