Racism is prejudice and discrimination based on race . An example is notions of black inferiority being manifested in the form of Jim Crow laws. As of recent, racism has come to mean the hatred of another person because of the color of his or her skin, or perceived difference in origin. The doctrine of substantive due process in United States constitutional law can be used to invalidate racist laws. Alternately, the equal protection clause of the Fourteenth Amendment can be used to do the same. See e.g. Brown v. Board of Education, 347 U.S. 483 (1954).
In other countries
Countries with a low democratic system also sustained racism, although with little legalities.