This document provides a historic overview of approaches to language teaching from ancient Greece and Rome to the 20th century. It discusses 10 major approaches: the grammar translation approach used in ancient times; the direct method in the late 19th century; reading, audiolingualism, and situational approaches in the early-to-mid 20th century; and cognitive, affective-humanistic, comprehension-based, and communicative approaches in the late 20th century. Each approach is summarized with its key principles and techniques.