air conditioning

The Alabama State Department of Education recently released data on the number of air-conditioned school buses during the 2022-23 school year. In all, Alabama has 7,904 operational school buses, and 3,815 of them are air conditioned.

Triple-digit heat and summer storms that left millions without power help mark the upcoming anniversary of engineer Willis Carrier's 1902 breakthrough. So how did ordinary people endure the heat before A.C. became a necessity?