Three clips from a very juicy documentary

The English people are systematically taught is not the english most UK natives speak
 http://www.youtube.com/watch?v=EEsI2t-mvZk

English as the language of the Empire and Lingua franca
 http://www.youtube.com/watch?v=Xzt2p1jRiro

Dated slang and slang that made it into the 21st century
 http://www.youtube.com/watch?v=8qub-s7e55k


 Naughty mockumentary on the history of the English language
 http://www.youtube.com/watch?v=rexKqvgPVuA