The document summarizes various language teaching methods from the 19th century to present day, including the Series Method, Berlitz Method, Audiolingual Method, Structural Situational Method, Silent Way, Total Physical Response, Communicative Language Teaching, Natural Approach, Cooperative Language Teaching, Content-Based Language Teaching, and Task-Based Language Teaching. It also provides brief biographies of influential applied linguists such as Claude Marcel, Francois Gouin, Thomas Prendergast, Noam Chomsky, and Earl Stevick.