====== Earth-Prime ======

In the [[Multiverse]], **Earth-Prime** at first appears to be the actual reality where the readers lived, DC Comics operated as a publisher, and all superheroes are fictional. However, Earth-Prime became an alternate reality in its first appearance in [[The Flash #179]], when the [[Flash (Earth-1)|Flash]] accidentally travels there from [[Earth-1]] by being pushed by a creature called the [[Nok]]. The Flash, stranded, contacts DC Comics editor [[Julius Schwartz]] who helps him construct a cosmic treadmill to return to Earth-1. Eventually it was stated that the writers of DC Comics of Earth Prime unconsciously base their stories on the adventures of the heroes on Earth-1 and [[Earth-2]].

In [[The Flash #228]], Earth Prime's [[Cary Bates]] travels to [[Earth-1]], where he discovers that the stories he writes are not only based on events on [[Earth-1]], but he can actually influence these events as well. This power turns for the worse in [[Justice League of America #123]], when Bates is accidentally transported to [[Earth-2]]. The inter-dimensional trip temporarily turns Bates into a super-villain, and he quickly kills the [[Justice Society of America]]. Luckily fellow DC writer [[Elliot S. Maggin]], with the help of the [[Justice League of America|Justice League]] and the [[Spectre]], is able to restore matters on both Earths in [[Justice League of America #124]].

==== Ultraa ====

[[Ultraa (Earth Prime)|Ultraa]] was introduced in [[Justice League of America #153]] and was Earth-Prime's first super-hero.. Like [[Superman (Earth-1)|Superman]], Ultraa was the sole survivor of a destroyed alien world, rocketed to Earth-Prime as a baby. After his first encounter with the [[Justice League of America|Justice League]], Ultraa decided Earth-Prime was not ready for super-heroes and relocated to [[Earth-1]]. 

==== Superboy ====

The world's second super-hero is [[Superboy (Earth Prime)|Superboy]]. He first appeared in [[DC Comics Presents #87]]. This Superboy's powers first manifested around the time of the passage of [[Halley's Comet]] in 1985. Just after manifesting his powers, Superboy met Earth-1's [[Superman (Earth-1)Superman]]. Very soon thereafter Earth-Prime was destroyed in [[Crisis on Infinite Earths #10]]. Superboy escaped his universe's destruction, and later joined Earth-2's [[Superman (Earth-2)|Superman]], Earth-2's [[Lois Lane-Kent]], and Earth-3's [[Alexander Luthor, Jr.|Alexander Luthor]] in in traveling through a portal that led them back to Earth-2.