Discrepancies between HISTORY OF THE MULTIVERSE and actual Silver/Bronze Age history

[Buried Alien]

During the past few issues of COUNTDOWN, there's been a backup feature called HISTORY OF THE MULTIVERSE...serving the same function for the Multiverse that Marv Wolfman and George Perez's original HISTORY OF THE DCU did in 1986 for the then newly-unified DC Universe.

For the most part, HISTORY OF THE MULTIVERSE hasn't departed much from the actual Silver/Bronze Age sequence of events depicted during the 1960s, 1970s, and early 1980s. One glaring exception, however, was a piece of dialogue in last week's issue that claimed that the Post-COIE DCU was a combination of the previous Earth-One and Earth-Two universes, while readers know that Earth-Four, Earth-S, and Earth-X were also a part of that mix. Nobody is sure if that's a deliberate retcon or simply a careless omission by the writer.

In any case, let's use this thread to track any other inconsistencies that might crop up between the history of the Multiverse as we know it from Silver and Bronze Age DC comics, and what's being revisited/revealed now in HISTORY OF THE MULTIVERSE.

Buried Alien (The Fastest Post Alive!)

[Flash's Lightning]

I am not an expert on this stuff because Crisis confuses me a lot.

But didn't old Superman say in Infinite Crisis that Earth 1 became the primary world, and the other worlds were folded into it? So that would suggest that it was more than just Earth 2.

Unless somehow only characters were folded into it without the "world" itself, but that's not really what they portrayed before.

[Super Buddies Forever]

Yeah, I think that was just a general slip-up and not some retcon.

At least this backup is a lot more coherent to continuity than History of the DCU Universe was. I'm still not sure if the pre-Crisis elements in that were supposed to reflect Pre-IC history as it actually happened or if they were from the New Earth vantage point. And if it's the latter, did we ever find out why they changed some minor details (like, for instance, saying that it was Barry Allen and not Wally West who vanished in Zero Hour)?