the law.20 By the 1850s, those who believed in democracy in America watched the rise of racial categories with dread. Abraham Lincoln recognized that enshrining racial distinctions in the law would destroy the Republic. Musing privately about the issue in 1854, he worked out his ideas on a piece of scratch paper: “If A. can prove, however conclusively, that he may, of right, enslave B.—why may not B. snatch the same argument, and prove equally, that he may enslave A.?” Lincoln demolished the idea that categories should be based on race: “You say A. is white, and B. is black. It is color, then;
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