This course aims at providing second-year BA students with  deep overviews of the history of modern linguistics  and its various approaches  conducted in linguistic analysis in the 20th  century. Pursuing a choronolical sequence, the course does not only highlts the weaknesses , strengths , and discrepancies between the various approaches, but alos  underlines the major innovations brought about by each approach. 

key words: modern linguistics, 20th century, approaches of linguistic analysis.