The exodusters left the South to migrate to Kansas and other western states.
Before Emancipation of slaves in the US many states in the south were afraid to let slaves have freedom because there were all ready a good amount of states to the north that had outlawed slavery. Many people were concerned with the new found freedom of people coming out of slavery. I was not able to find any laws before slaves were freed. I hoped this helped some what.
Answer:
to protect voters from threats during elections.
