Talk:The History of Britain Revealed

Hi. I would like to hear your views on the features of NE, that have evolved since OE, but regardless of Norman influence. According to mainstream views, OE IPA included raised vowels and the r was trilled - as in many germanic languages - or guttural, as in German. Are there any reasons for these changes, among others? Despite so many loan words brought in by the Normans, why such a steep change from OE to NE?