Alabama voters head to the polls for the midterm elections next week. One ballot item would abolish slavery in the state. The vote takes place one hundred and fifty seven years after the thirteenth amendment ended the practice nationally. Historians say many of the estimated four hundred thousand enslaved people, who were freed, chose to live out their lives in Alabama. APR spoke to some of their descendants who say they’re still dealing with the impact of the slave trade. The Alabama Public Radio newsroom spent nine months investigating one aspect of that. Namely, the effort to preserve slave cemeteries in the state.