Historical Timeline of Atlanta
- 1733, James Oglethorpe lands in Savannah establishing Georgia, the 13th British Colony
- 1830s, Railroads begin to appear in Georgia
- 1836, Georgia legislature approves construction of state-owned "Western & Atlantic Railroad" to give the Port of Savannah "inland reach" to the Tennessee and Ohio Valleys
- 1837, Stephen Harriman Long defines the 138-mile route and starting point (terminus)
- 1842, Location of terminus moved about 1,200 feet to this location
- 1843, Marthasville incorporated
- 1847, City of Atlanta incorporated
- 1850, Zero Mile Post (granite marker) placed at this location
- 2018, ZMP relocated to Atlanta History Center (see photo below)
