4 ms·

Also maybe they knew things about cooling buildings without AC that we have forgotten.

• mighty_bander 7y ago
  An interesting quirk of old buildings is a structure called a "transom" - a space above a door which could be opened to allow for the free flow of air. Regrettably, it also allowed for highly effective oxygenation of fire, resulting in countless deaths, and so has been excised from the architectural lexicon.