 Marshall distinguished civil, political, and social rights, and he argued that, over the course of several centuries, the idea of citizenship had progressively expanded from encompassing only civil rights to including political rights and then, during the 20th century, to incorporating social rights. His distinction between civil and political rights tracked the line that the U.S. Supreme Court had drawn during the 19th century between rights to property, contract, due process etc., on the one side, and the rights to vote and hold office, on the other. But what he meant by the term ’social rights’ was very different from what the U.S. Supreme Court had in mind.