Brave New World opens with:
It was but two centuries ago-- mere moments in the cosmic scheme--
I think you'll find that's four centuries, actually.
--That the people there believed Earth the center of the universe.
In the eighteenth century? You think?
Eventually science disabused them of this notion,
That would be Galileo, 1564 - 1642. But not in the new DC universe.
I wonder what other historical retconning has occured. And is adjusting cosmology so that it's not until the period of the american civil war that it is established that the Earth revolves around the Sun a step too far? Is it an example of american imperialism to rewrite historical events to a time period where they can be attributed to americans?
Enquiring minds are all agog.