As I'm trying to get into the post-Rebirth DC continuity, I have to do these mental gymnastics to accept what is and isn't in continuity. I'm trying to come up with a way to divide up the different DC realities from 1935 to the present.
It would have helped if DC just gave a different number or letter to each new Earth continuity they introduced as they went along. But that ship has sailed--we now have multiple Earth-Ones, Earth-Twos, Earth-Threes, et al.
For example, as I read about Barry Allen, I find it hard to accept that this is either the original Barry Allen from Earth-One (pre-Crisis) or the re-invented Barry Allen(s) from new Earth (post-Crisis).
The solution I've come up with, thusfar, is to designate the different Earths as belonging to either:
- the α Multiverse (Alphaverse), 1935 - 1985;
- the β Multiverse (Betaverse), 1986 -2010;
- the γ Multiverse (Gammaverse), 2011 - present.
Thus original Barry Allen comes from Earth-Alpha-One (E-α-1). The original Justice Society of America was on Earth-Alpha-Two (E-α-2). The new Earth-One books are in the Gammaverse on Earth-Gamma-One (E-γ-1).
Even though the present Gammaverse includes continuities that resemble those from the Betaverse (post-Crisis/pre-Flashpoint) and even bits from the Alphaverse (pre-Crisis)--it's not those. It's a unique Multiverse unto itself. And even though there's a Superman who claims to come from the pre-Flashpoint Earth, he's too much unlike that actual Superman to be him--rather he's a Gammaverse distortion of that continuity, so he comes from an Earth yet to be determined (E-γ-?).
This is just my first stab at trying to impose some order on the confusion that DC has given us. I'm open to suggestions for other taxonomies we can use to keep things straight.