10 The history of diachronic linguistics: Historical linguistics, language change, language
       families, the comparative method, old English, middle English, modern English, the
       cause of language change.       
 
     

Guidelines:

Historical linguistics

The history of English

Language families

The comparative method

Analogy and borrowing

The causes of language change

 

Where the info can be found:

1 Our lecture or

2 Goerge Yule: The study of language,CUP, chapter 19 Language History and Change

or Victoria Fromkin, Robert Rodman: An Introduction to Language, Holt, Rinehart and Winston, Inc., USA, chapter 8 Language Change: The Syllables of Time