Introduction to language change and the methodology of historical linguistic analysis, using data from a wide array of languages. Investigates genetic relatedness among languages, language comparison, historical reconstruction, and patterns and principles of change in phonology, morphology, syntax, and semantics. Carries humanities divisional studies credit in CAS. Also offered as GRS LX 660. This course cannot be taken for credit in addition to the course with the same title that was previously numbered CAS LX 535.