[QUOTE=Menocchio]
We’re on Earth-Prime. It’s the real world.
Or at least, it was. See, it mostly appeared in stories where the Flash would travel to another dimension and hang out with his own editor and such. Some spoilsports noted that that never actually happened and thus Earth-Prime couldn’t be the real world. Instead of telling them to STFU and firing them for a terminal lack of imagination, they were allowed to spoil the concept by giving it some native superheroes, namely Ultra (or was it Ultraa? I can never remember) and later, Superboy-Prime.
[/quote]
That spoilsport specifically was Gerry Conway.
Earth Prime first appeared in Flash 178 (or 9? right around there anyway). Flash was running/vibrating really fast and ended up on Earth Prime. The problem is that he couldn’t get off it. It was hard to make superpowers work to their fullest extent there. So, once Barry learned that his adventures were being published by DC, he knocked on Julius Schwartz’s door and asked for help. Schwartz helped him construct a Cosmic Treadmill which allowed him to escape Earth-Prime.
The second time (IIRC) it showed up was right before Conway took over Justice League (and had the single worst run in the book’s history, IMO*) there was a very fun two parter where Cary Bates and Elliot S! Maggin were co-writing JLA and one of them showed the other (I think Bates showed Maggin) that the Cosmic Treadmill story was real by sneaking into Schwartz’s office where the treadmill was supposed to be stored after Barry left.
Of course they started screwing around with it and of course they turned it on and there was some residual super-speed energy (shades of the speed force!) left in it and they disappeared. One (the plotter) ending up gaining the ability to make stuff happen and the other one, the dialogue writer got the ability to make characters say what he wanted. The “plotter” got kidnapped by baddies and it was up to the JLA, the JSA and the dialogue writer to save the day from the Injustice Society (or whoever) and the Plotter who would do things like “And…a kryptonite meteor just happens to fall right near Superman.” and then stand back as it happened. Loads of fun. And part of the fun was that the Earth-Prime appearances had been kept really low-key: a couple of people saw a guy in a Flash costume, stuff like that. But overall, that was it. There may have been one other pre-Conway Earth-Prime appearance but the writers apparently realized that the concept had to be handled carefully and rarely.
Conway appeared to hate the idea of Earth-Prime–it seemed like it was like a scab that he couldn’t stop picking at. He was all upset that “Well, Flash never REALLY visited Julie Schwartz, so we’re not Earth-Prime, we’re Earth-Real.” Once he got firm control of the JLA (after the Steve Englehart run–which may be the best JLA run in history) his second or third story was to give Earth-Prime a super-hero (Ultra(a?)) and had 5 or 6 JLA memebers get into a big three-way fight with him and his arch-villian (a giant evil space-pyramid, IIRC) to “prove” that we are on “Earth-Real”, not Earth-Prime ('cause there was nothing in the newspapers about a big super-hero fight, right?). He then nuked Earth-Prime IIRC (it was in an awful, IMO, JLA/JSA team-up in the high 190s, low 200s.) Everyone seems to have ignored it (or I’m misremembering).
Frankly, Earth-Prime was a fun conceit and I never did really understand Conway’s hatred of the concept. Apparently at one point, a bunch of DC-Staffers built a mock-up of the Cosmic Treadmill and put it in Schwartz’s office one night with a note saying something like “Sorry Julie! Needed to use it to get back home and you weren’t around. Best wishes, Barry.” and thereafter Schwartz kept it in his office for when fans showed up.
*Strangely the same could be said about his Legion run, his FF run and his Avengers run. Conway could write really good solo characters (Daredevil (he wrote, IMO the *definitive pre-Miller Daredevil) Spider-Man, Firestorm and Batman to name a few) but he just couldn’t cope with team books.