Old Southwest
The "Old Southwest" is an informal name for the southwestern frontier territories of the United States from the American Revolutionary War c. 1780, through the early 1800s, at which point the US had acquired the Louisiana Territory, pushing the southwestern frontier toward what is today known as the Southwest. After numerous wars and an ethnic cleansing campaign, this region was eventually divided among six states that joined the union as Kentucky, Tennessee, Mississippi, Alabama, West Virginia and Florida.