The Cambridge History of Philosophy 1870-1945 comprises over sixty specially commissioned essays by experts on the philosophy of this period, and is designed to be accessible to non-specialists. The first part of the book traces the history of philosophy from its remarkable flowering in the 1870s through to the early years of the twentieth century. After a brief discussion of the impact of the First World War, the second part of the book describes further developments in philosophy in the first half of the twentieth century. The essays concentrate on developments across the range of philosophical topics, from logic and metaphysics to political philosophy and philosophy of religion. This volume will be of critical importance not only to teachers and students of philosophy but also to scholars in neighbouring disciplines such as the history of science, the history of ideas, theology and the social sciences.