THE ENGLISH LANGUAGE
The History of English in Ten Minutes, by the Open University A ten-episode course by the Open University with transcript and downloadables. British English. Level B2-C2.
How India changed the English language (BBC Culture)
How William Shakespeare Changed the Way you Talk
Talk of the Town: How Where you Live Got its Name
Ancient Switch to Soft Food Gave us the Ability to Pronounce "fs" and "vs"