It makes a lot of sense if you think about it....swamp people to planes in a few hundred years....why couldn't they build any of that stuff for the last 4 millennia?
Clearly, there is something supernatural going on here
As a swamp person I can assure you there was no other way. Have you seen Stonehenge? The coliseum, the aquaducts? I mean, c'mon, it took how long for Europe to get a level of plumbing comparable to the indus valley civilization? Clearly we had help getting there. No other way.
Hitler was an alien from an advanced civilization who tried to spread his knowledge and technology. Unfortunately he chose white people to be Aryans and they failed to understand his technology