In 1865 Slavery is abolished in the United States by the 13th Amendment to the Constitution.
In 1905 the laws known as "Jim Crow" are formally established, a formal and informal system of racial segregation in all aspects of life was built in the southern states of the United States. Segregation and informal racism continue in the northern states.
From 1910 to 1960 the "great migration" of African Americans from the southern United States to the northern and eastern cities took place.
Concentration camps were used to work and starve the Jewish people to death but death camps were used to gather the people into a building and gas them to death immediately. This met Hitler's goal by killing as many Jews as he could or the Final