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Racial segregation is separation of humans into racial groups. It affect to activity of the people were separate such as eating in restaurants, attending school, going to the movies, riding on a bus, or purchase something what they want. They look not good look bad stretch as flouting. Segregation itself is defined by the European Commission against Racism and Intolerance as "the act by which a (natural or legal) person separates other persons on the basis of one of the enumerated grounds without an objective and reasonable justification, in conformity with the proposed definition of discrimination. As a result, the voluntary act of separating oneself from other persons on the basis of one of the enumerated grounds does not constitute segregation".According to the UN Forum on Minority Issues, "The creation and development of classes and schools providing education in minority languages should not be considered impermissible segregation, if the assignment to such classes and schools is of a voluntary nature".
Racial segregation is generally outlawed, but may exist through social norms, even when there is no strong individual preference for it, as suggested by Thomas Schelling's models of segregation and subsequent work. Segregation may be maintained by means ranging from discrimination in hiring and in the rental and sale of housing to certain races to vigilante violence (such as lynchings) Generally, a situation that arises when members of different races mutually prefer to associate and do business with members of their own race would usually be described as separation or de facto separation of the races rather than segregation.