Antebellum is defined below: an·te·bel·lum /ˈæntiˈbɛləm/ [an-tee-bel-uhm] –adjective before or existing before the war, esp. the American Civil War. [Latin ante bellum : ante , before + bellum , war .]
Not to sure on the history or story involving the name, just wanted to let people know the meaning of antebellum.