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
Superman: The Man of Tomorrow Superman: The Man of Tomorrow Superman: The Man of Tomorrow ("MOT") is the title of a comic book series published by DC Comics that ran for 16 issues from 1995 to 1999, featuring the adventures of Superman. At the time, the four Superman titles ("Action Comics", "The Adventures of Superman", "Superman", and "") were released weekly with an intertwining story. "The Man of Tomorrow" title was created to fill the extra week in months with five weeks. At about this time, however, DC began its fifth week events, disrupting the schedule of "The Man of Tomorrow", and it was subsequently