In Georgia, advancing Union forces suffer a very heavy defeat near Chickamauga Creek
09/18/1863 to 09/20/1863
Union General William Rosecrans was following up his successful capture of Chattanooga when Confederate General Braxton Bragg turned his retreating force and fought a three-day battle in north-western Georgia near Chickamauga Creek. Union troops were holding their own when an error from Rosecrans opened a gap in his lines. Bragg then advanced and placed Chattanooga under siege. Rosecrans was replaced within weeks as commander of the Army of the Cumberland. (By John Osborne)
Frank Moore, ed., The Rebellion Record: A Diary of American Events, with Documents, Narratives, Illustrative Incidents, Poetry, Etc. (New York: D. Van Nostrand, 1864), VII: 55.