The Generalist Papers
A brief history of English from the Anglo Saxons to Shakespeare
Some sources:
The Cambridge history of the English language. Vol. I: The beginnings to 1066 by Richard M. Hogg
A History of the English Language by Albert C Baugh
https://www.britannica.com/topic/English-language/
https://www.englishclub.com/history-of-english/
https://www.oxfordinternationalenglish.com/a-brief-history-of-the-english-language/
Music:
Angevin, Lord of the Land and Thatched Villagers by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/