99PI did a wonderful episode on this: https://99percentinvisible.org/episode/thermal-delight/ https://99percentinvisible.org/episode/thermal-delight/ Basicall

99PI did a wonderful episode on this: https://99percentinvisible.org/episode/thermal-delight/ https://99percentinvisible.org/episode/thermal-delight/ Basically, the US abandoned their regionally different architecture once AC became common.