MAY 18, 1896 The U.S. Supreme Court ruled 7-1 in Plessy v. Ferguson that racial segregation on railroads or similar public places was constitutional, forging the “separate but equal” doctrine that remained in place until 1954. In his dissent that would foreshadow the ruling six decades later in Brown v. Board of Education, Justice John Marshall Harlan wrote that “separate but equal” rail cars were aimed at discriminating against Black American…