The Jim Crow laws were state and local laws introduced in the Southern United States in the late 19th and early-to-mid-20th centuries that enforced racial segregation. The origin of the term Jim Crow is obscure, but probably refers to a minstrel show song called "Jump Jim Crow". Formal and informal racial segregation policies were present in other areas of the United States as well, even as several states outside the South had banned discrimination in public accommodations and voting. Southern laws were enacted by white-dominated state legislatures (Redeemers) to disenfranchise and remove political and economic gains made by African Americans during the Reconstruction era. Such continuing racial segregation was also supported by the successful Lily-white movement.