Comparative literature is the study of literature beyond the confines of one particular country, and the study of the relationships between literature on the one hand and other areas of knowledge and belief, such as the arts (e.g., painting, sculpture, architecture, music), philosophy, history, the social sciences (e.g., politics, economics, sociology), the sciences, religion, etc., on the other.
In belief, it is the comparison of one literature with another or others, and the comparison of literature with other spheres of human expression.