When emancipation in 1865 thrust all Black people into the land of freedom, White communities built higher walls of segregation to keep Black people out. Light communities, too, built higher walls of segregation to keep Dark people out. To maintain Light privilege, the segregated Light people further segregated their Dark brothers and sisters, preserving prewar racial disparities between Light and Dark people. After slavery, Light people were wealthier than Dark people and more likely to have good-paying jobs and schooling. By the end of the nineteenth century, dozens of cities had “Blue Vein”
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