In what way did the thirties, the forties and the fifties differ to one another?

Blatantly a rip-off of this (sorry @ZEPHYRA), but also for my little need.

Those timelines seemed so similar, from the fashion, the building to people’s view. I can’t tell if a person lived in the thirties, the forties or the fifties in a photo. Can you draw a line among these three timeline?

This question only concerns about America, not other countries.