The course seeks to highlight the major landmarks in the history of the English language that have made English the most outstanding international language. The course therefore engages a chronology of the evolution of English Language by examining the following periods: the Germanic Period, the Old or Anglo-Saxon Period, Middle English,  and the Period of Modern English; the notion of Lingua Franca is also studied, and the course finally shows that today’s English is related to the phenomenon of Language Mixing because although Germanic by origin ( vocabulary and Grammar), todays’ English is comprises words borrowed from hundreds of other languages.