3 ms·

People lived before 1902 and the invention of compressor-based air conditioning.

• giantrobot 5y ago
  Not in all the places and densities that they do today.
• deleted 5y ago
  [deleted]
• kalleboo 5y ago
  People also died a lot back then. Even today heatwaves in Europe kill a lot of elderly as air conditioning in homes isn't common
• throw0101a 5y ago
  People lived before 1945 and the wide availability of penicillin/antibiotics. A lot more folks died from infection as well.