Answer:
Well I remember back in the renaissance or Shakespearean era, around when the black plague started theaters weren't indoors but rather outdoors. If you go that far back I guess people weren't kept cool but you have to more specific.
An example of what the theatre looked like
The National Museum of the Great Lakes is a nice tourist attraction on all things of Lake Erie, the Erie Canal, and the Industrial Revolution of America. : D
I believe it was either the Sumerians or the Mesopotamians, hope this helps! :-)
Being sick duh.....
yeah put that