The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)

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This book condemns slavery, by appealed to whites' rational self-interest, rather than any altruism towards blacks. Helper claimed that slavery hurt the Southern economy by preventing economic development and industrialization, and that it was the main reason why the South had progressed so much less than the North since the late 18th century.