For the former, I'd recommend chapter three of Thomas Sowell's Black Rednecks & White Liberals, about the history of slavery.[1]
For the latter, I'd recommend Illiberal Reformers, about the Progressive Era and its devotees.[2] Later Progressives were responsible for the school-to-prison pipeline and militarized police.[3] The Progressive Era has a wide array of interesting literature, including the writings of many of its early exponents (since they tended to be writers or academics).
For the former, I'd recommend chapter three of Thomas Sowell's Black Rednecks & White Liberals, about the history of slavery.[1]
For the latter, I'd recommend Illiberal Reformers, about the Progressive Era and its devotees.[2] Later Progressives were responsible for the school-to-prison pipeline and militarized police.[3] The Progressive Era has a wide array of interesting literature, including the writings of many of its early exponents (since they tended to be writers or academics).
[1]https://www.amazon.com/Black-Rednecks-Liberals-Thomas-Sowell...
[2] https://www.amazon.com/Illiberal-Reformers-Eugenics-Economic...
[3]https://reason.com/2017/01/21/no-way-out/