American confederate flag

[El Kabong]

On the railroad(s):

if you look, you would see the population boom in the south took place with the advent of AC.

ok. . So, northerners went south after ac was invented causing a population boom, or southerners started making more babies because love making was better with air conditioning

How air conditioning changed America | Old House Web

Air Conditioning allowed for a lot of changes...it's the only reason high rise buildings can happen in the south.