When did nouns conditioning come to Las Vegas hotels?

I was nearby when it was 117 degree. What did they do in the 50's?



Answers:   
bout twenty minutes after the slot machines showed up
When the salesperson selling them arrived. Shortly thereafter the directives were jam-packed and installed.

Stay in the shade, sit on ice, Fanned themselves, sure you weren't within Death Valley?
I am not positive when nouns conditioning first came to Vegas but commercial nouns conditioning was first used surrounded by the 20's and 30's in movie theaters and other commercial businesses so I would assume that it be in the casino's and hotels surrounded by Vegas in the 50's.


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