Final answer:
African Americans in Southern states after slavery faced terrorism such as actions from the Ku Klux Klan, lynching, segregation, and voter discrimination, leading many to flee to the North only to face de facto discrimination there as well.
Step-by-step explanation:
After the end of slavery, African Americans faced various types of terrorism in Southern states. These included the rise of the Ku Klux Klan (KKK), which engaged in death threats, violence, and lynchings. Despite the passage of the Thirteenth, Fourteenth, and Fifteenth Amendments, guaranteeing freedom and rights, African Americans were subjected to racial injustice, including segregation and voter discrimination. This violence led many to flee to Northern states; however, they encountered de facto discrimination there as well.
Racism and violence persisted even after World War II, with White mobs responding to civil rights advancements and Black veterans returning from war with hostility and aggression. The efforts to combat racial inequality were met with significant resistance, with racial riots and continued violence marking this turbulent period in American history.