#slave_state__slavestate  any of the southern states in which slavery was legal prior to the Civil War
  exclusion:  #free_state
  supertype:  #American_state  one of the 50 states of the United States
  part of:  #Confederate_States_of_America__Confederacy__South__Dixie__Dixieland  the 11 southern states that seceded from the United States in 1861

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