In 1857, part of the southeastern corner of the county was ceded by the General Assembly to form Milton County (now the cities of Milton, Alpharetta, Roswell, and parts of Sandy Springs, within north Fulton County).
in 1857 part of the southeastern corner of the county was ceded by the general assembly to form milton county (now the cities of milton alpharetta roswell and parts of sandy springs within north fulton county)