Alternative versions of Superman establish a new continuity for DC, affecting not only Superman, but all of the DC Comics characters. The versions of Superman from this time period are traditionally divided into three main periods. The first version of Superman began being published by DC Comics in 1938 appearing in "Action Comics" #1. To explain discrepancies in the aging of Superman across several decades, his earliest stories were retroactively portrayed as having taken place on an alternative world called Earth-Two. These stories take place from 1938 until the late 1950s, although the exact dividing line is unclear and some stories happened identically to
DC animated universe (comics) League Unlimited" comics did use many characters from the DC Universe, some characters never made it to the screen. Those that did not appear in the television series are listed below: The entire Marvel Family (except for Captain Marvel, who made a one-time appearance) were unable to appear on "Justice League Unlimited" due to legal reasons. DC animated universe (comics) While Batman and Superman had their own animated series and comic book follow-ups, the rest of the characters in the would appear in the following comics often. The Batman Adventures was created as a comic book tie-in to and The