The correct answer is: By denying citizenship.
This happened in Dred Scott legal case in the Supreme Court on March 6th, 1857, it was ruled that a slave that who had resided in a free state and territory was not entitled to his freedom, in this case referring to Dred Scott. The Supreme Court stated that no African American could be a citizen of the United States. With this decision began the controversy to civil war.
Answer:
a fight broke out and people died
Answer:
Plantation owners were in need of workers and what better to have free labor from Africa and Native Americans so slaves were in high demand which caused a lot of involuntary migration.
Samuel Gompers succeeded in organizing cigar makers into a union (an organization of workers that bargains for better pay and working conditions), and in the same year that he wrote his articles about the living conditions of these workers, he organized the Federation of Organized Trades and Labor Unions of the United States and Canada, the forerunner of the American Federation of Labor (AFL).