The answer is John Dewey who's an American educator and psychologist who was influential in changing education and social reform in United States. He was considered as one of the founders of functional psychology and the philosophy of pragmatism.
Um bts smooth like butter. My favorite band.
Apartheid was a South African system of segregation by race.
Under this system many people of African decent faced discriminatory and oppressive political and economic practices.
The answer is: state governments
When the immigrants come into united states, they will settle on the states and will most likely have to settle to find a job in that states.
Because of this, the number of employment in that states could be threaten if the increase in the amount of workers far surpassed the increase in the amount of job opportunities. The state government would be the one that is responsible to bear such challenge.
I think it is Plessy v. Ferguson