 John Dewey (1859–1952) was one of American pragmatism’s early founders, along with Charles Sanders Peirce and William James, and arguably the most prominent American intellectual for the first half of the twentieth century. Dewey’s educational theories and experiments had a global reach, his psychological theories had a sizable influence in that growing science, and his writings about democratic theory and practice deeply influenced debates in academic and practical quarters for decades. In addition, Dewey developed extensive and often systematic views in ethics, epistemology, logic, metaphysics, aesthetics, and philosophy of religion. Because Dewey typically took a genealogical approach that couched his own view within the larger history of philosophy, one may also find a fully developed metaphilosophy in his work.