For many decades, race and racicsm have been common areas of study in departments of sociology, history, politcal science, English, and athropology. Much more recently, as the historical concept of race and racial categories have faced signifcant scientific and politcal challenges, philosophers have become more interested in these areas. This changing understanding of the ontology of race has invited inquiry from researchers in moral philosophy, metaphysics, epistemology, philosophy of science, philosophy of language, and aesthetics.