- Aug 16, 2015
Zero to little.
It depends what is meant by "Georgia's historical records". State records were kept at Milledgeville, the State's capital. Other records- birth, property, etc- were kept at county courthouses. The courthouse in Fulton County, where Atlanta was located, escaped damage: no records were lost. Atlanta's City Hall was also spared. Private homes undoubtedly held family treasures, many of which may be considered "historical records". As anywhere from 37% to 92% of the city was destroyed, including about 3400 residences and all institutions of learning except the Atlanta Medical College, there were undoubtedly irreplaceable record losses.
Source: Walter G. Cooper, The Official History of Fulton County, (Atlanta, GA: Walter W. Brown, 1934), pp. 182-185.
Source: Wallace P. Reed, History of Atlanta, Georgia: With Illustrations and Biographical Sketches.... (Syracuse, NY: D. Mason & Co., 1889), pp. 206-208.
Source: Paul K. Graham, "The Search for Fulton County's Stolen Records". Georgia Genealogical Society Quarterly, Vol. 45, No. 3 (Fall 2009), pp. 217-221.