Until recently, that's what I thought it was.
What? Don't look at me, I'm not american! The image in my head was so cool!
Anyway, the AH is to have an alternate 19th century where the Underground Railroad is actually a Railroad that is Underground and it ferries escaped slaves back to the...
actuallyundergroundrailroad
american civil war
choo choo motherfuckers
confederates
slavery
trains are cool
undergroundrailroad
union
war between states