I've always wondered what happened to that 50's, 60's American accent. How come nobody speaks it anymore and what part of the country did it come from?

Edit: we still have a NY accent, a midwest accent, a southern accent, a Texas accent; but this accent disappeared. Maybe it was just a fake TV accent.

I've always wondered what happened to that 50's, 60's American accent. How come nobody speaks it anymore and what part of the country did it come from?

Edit: we still have a NY accent, s midwest accent, a southern accent, a Texas accent; but this accent disappeared. Maybe it was just a fake TV accent.

I've always wondered what happened to that 50's, 60's American accent. How come nobody speaks it anymore and what part of the country did it come from?