Answer:
Explanation:
In Dred Scott v. Sandford (argued 1856 -- decided 1857), the Supreme Court ruled that Americans of African descent, whether free or slave, were not American citizens and could not sue in federal court. The Court also ruled that Congress lacked power to ban slavery in the U.S. territories.
Many people could no longer afford to live there
After the loss and withdraw of American troops from South Vietnam in 1976 during the Fall of Saigon the Viet Cong pushed into Saigon and took control of South Vietnam. Thus ending the "war" and South Vietnam being reunited with the North under one communist government
