A fascinating example of the progression of the English accent throughout the years from the 14th to the 21st centuries.
https://youtu.be/3lXv3Tt4x20
Progression of the English Accent
Progression of the English Accent
You trying to tell me you didn't hear that shriek? That was something trying to get out of its premature grave, and I don't want to be here when it does. - Phantom of the Paradise (1974)
Re: Progression of the English Accent
That's fascinating, isn't it? Did you notice the one in the 1700s sounds very similar to an American accent? That's because the Amercian colonists brought with them the British accents of the time. The accent in England later changed, but the American remained the same (which is what tends to happen when colonies get separated off from the mother country). So our accent is basically the British accent of the 1600-1700's. 
Re: Progression of the English Accent
Isn't that fascinating?Now, how did the southern accents evolve?
You trying to tell me you didn't hear that shriek? That was something trying to get out of its premature grave, and I don't want to be here when it does. - Phantom of the Paradise (1974)