The nineteenth century was seemingly a period of great progress. Huge advancements and achievements were made in science, technology and industry that transformed life and work alike. But a growing pride in modernity and innovation was tainted by a sense of the loss of the past and the multiple threats which novelty posed. The Cambridge Companion to Nineteenth-Century Thought provides an impressive survey of the period’s major ideas and trends. Leading scholars explore some of the most influential concepts and debates within philosophy, history, political thought, economics, religion and the social sciences, as well as feminism and imperialism. Some of these debates continued into the following century and many still remain relevant in the present day. This Companion is an excellent tool for readers seeking to understand the genesis of modern discourse across a range of humanities and social science subjects.