So much of history has been rewritten/obscured, that we really do not know when or where we are.

And most people cannot cognize that we cannot move the stones that they built the pyramids with. With all our trucks and our big cranes, we still can't. But people do not believe that.

They still have the idea that they were rolled on logs. (logs do not carry that weight)

And there are so many pieces of ancient things, that boggle the mind about how they were constructed.

Then we have ancient texts that describe how to make flying machines (not like we make them)
So much of our history is gone.