 A final recent development in the United States merits mention in connection with Latin American philosophy. There are now several generations of distinguished philosophers of Hispanic or Latin American descent have worked in the United States and Canada, contributing to traditional philosophical fields such as metaphysics, epistemology, and the history of philosophy. Among these are George Santayana (1863–1952), Héctor-Neri Catañeda (1924–1991), Mario Bunge (b. 1919), Ernesto Sosa (b. 1940), Jorge J. E. Gracia (b. 1942), and Linda M. Alcoff, among others.